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Dyson Purifier Humidify+Cool Formaldehyde PH04 (White/Gold)
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Please select the appropriate option

Replacing the remote control battery

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Is there anything else we can help with?"

We're glad the problem's been solved.

Please let us know if there's anything else we can help you with.

Unscrew the remote control's battery compartment.

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Loosen the base and pull it away from the remote. Replace the battery with type CR 2032.

Is there anything else we can help with?

Please select the appropriate option

Using the product with a filter or evaporator not produced by Dyson may have a detrimental effect on the functionality of the machine. Any issues therefore caused by using one or both of these, will not be covered under the products guarantee.

Check and clean the machine

A grating or grinding noise could be caused by a blockage.

To always get the best performance from your Dyson purifying humidifying fan, it's important to regularly clean it and check for blockages.

Cleaning your machine

Wipe the machine with a damp lint-free cloth, paying special attention to the two oscillating channels within the amplifier loop.

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Look for blockages in the air inlet holes in the shrouds, the small aperture inside the amplifier loop, and the soft plastic mesh visible inside the machine when the evaporator is removed.

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Use a soft brush to remove dust and debris.

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Do not use detergents or polishes to clean the machine.

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Has this resolved the problem?

We're glad the problem's been solved.

Please let us know if there's anything else we can help you with.

Trickling or gurgling noise

If your machine is making a trickling or a gurgling sound, this indicates that the evaporator may be missing or has not been inserted correctly. Remove the evaporator and reinsert it.

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Hold the evaporator by the handle and push it into the machine until it slots into place.

With the evaporator in place, close the inner door making sure it clicks firmly shut.

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A trickling or gurgling noise can be heard if the evaporator is missing. In this instance, please replace the evaporator in the machine.

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Should the drip tray overfill, the machine's water return float is activated. As the water returns to the tank, a trickling or gurgling noise may be heard. The display screen will prompt that a deep clean cycle is to be run.

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Has this resolved the problem?

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Apologies. We can't help you online.

But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

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Your machine will alert you when it needs you to carry out a Deep clean cycle. If you are connected to the Dyson Link app, you will receive a notification message.

If you are not using the Dyson Link app, the LCD screen on your machine will alert you and the Deep clean cycle button will light up.

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Press the Deep clean cycle button

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

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Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

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Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

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Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

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Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

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Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

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Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

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Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

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Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

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Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

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Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

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Has this resolved the problem?

Reassemble the machine

If your machine is whining or whistling, it may be because one of the parts is not securely fitted.

Switch off, unplug and reassemble your machine.

Push down on the buttons on either side of your machine to release the outer covers. Push down on the tabs to remove the filters.

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Push down the water tank release buttons on the sides of your machine.

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Remove the evaporator and check the soft plastic mesh directly above where it sits inside the machine.

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Hold the evaporator by the handle and push it into the machine until it slots into place.

With the evaporator in place, close the inner door making sure it clicks firmly shut.

Push the filters into the outer covers and make sure the tabs click into place.

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Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

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Put the outer covers into position on your machine and push firmly until they both click securely in place.

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Plug your machine in and switch it on.

Has this resolved the problem?

Push down the Shroud release buttons on both sides of your machine to release the shrouds.

Look at the seals on the filters inside the shrouds. Have any of the seals come off or become dusty?

If the rubber seal on the filter is dirty or deformed, gaps can appear between the parts causing an unusual noise.

Wipe the dust off or fix the displaced rubber seal. Replace the shroud back on to the main body.

Has this resolved the problem?

Ensure the correct button on the remote control is being pressed.

Point the remote control directly at the front of the machine when pressing the button.

Airflow speed

Press the Airflow speed button to increase and decrease the airflow speed.

The Airflow speed can be adjusted from 1 - 10, with 1 being the lowest setting and 10 being the highest.

Check the airflow direction

Press the Airflow direction button on the remote control to change the direction of airflow from front to back.

An animation on the display will indicate the airflow direction when the button is pressed. Alternatively, you can feel the airflow direction by holding your hand either in front of or behind the amplifier loop.

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Looking after your machine

To always get the best performance from your Dyson purifying humidifying fan, it's important to regularly clean it and check for blockages.

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Cleaning your machine

If your machine is dusty, wipe it with a damp lint-free cloth.

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Look for blockages in the air inlet holes in the shrouds, the small aperture inside the amplifier loop, and the soft plastic mesh visible inside the machine when the evaporator is removed.

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Use a soft brush to remove dust and debris.

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Don't use detergents or polishes to clean your machine.

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Has cleaning the machine resolved the problem?

Ensure the correct button on the remote control is being pressed.

Point the remote control directly at the front of the machine when pressing the button.

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Airflow speed

Press the Airflow speed button to increase and decrease the airflow speed.

The Airflow speed can be adjusted from 1 - 10, with 1 being the lowest setting and 10 being the highest.

Check the airflow direction

Press the Airflow direction button on the remote control to change the direction of airflow from front to back.

An animation on the display will indicate the airflow direction when the button is pressed. Alternatively, you can feel the airflow direction by holding your hand either in front of or behind the amplifier loop.

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Does the airflow speed change?

Test the remote control

Test the other buttons on the remote control.

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Point the remote control directly at the front of the machine when pressing the button.

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Do the other buttons on the remote work?

Is your machine linked to the Dyson Link app?

Adjust the airflow speed using the remote controls within the Dyson Link app.

Are you able to adjust the airflow speed using the Dyson Link app?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Replacing the remote control battery

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Unscrew the remote control's battery compartment.

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Loosen the base and pull it away from the remote. Replace the battery with type CR 2032.

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Has this resolved the problem?

Check that the machine has downloaded the latest software available.

Checking your machine's software information

Find your machine in the Dyson Link app and press the settings icon in the top right, then select your machine's settings.

From here, navigate to the software option and make sure Auto-update is selected.

Does the machine have the latest software available?

Cancel the Deep clean cycle

To cancel the Deep clean cycle, press and hold the Deep clean cycle button for five seconds.

Update the machine’s software

Find your machine in the Dyson Link app and press the settings icon in the top right, then select your machine's settings.

From here, navigate to the software option and make sure Auto-update is selected.

Check the cap and connections

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Restart the Deep clean cycle

Once the software has been updated, please restart the Deep clean by pressing the Deep clean cycle button and following the instructions on the LCD screen.

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Deep cleaning your machine

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Press the Deep clean cycle button

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

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Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

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Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

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Half fill the tank

Carry the water tank by its handle to the tap.

Remove the cap and evaporator. Fill the water tank halfway to the Max level with cold tap water.

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Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

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Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

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Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

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Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

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Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

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Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

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Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

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Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

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Has this resolved the problem?

Cancel the Deep clean cycle

To cancel the Deep clean cycle, press and hold the Deep clean cycle button for five seconds.

Remove the tank

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine.

Check the cap and connections

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

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Reinsert the tank

Slide the water tank back into your machine until it clicks securely in place.

Restart the Deep clean cycle

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

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Deep cleaning your machine

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Display screen

The humidification dial on your LCD screen shows the current room humidity in grey, and the target humidity in blue.

When your machine is humidifying, the dial will appear blue. A grey dial indicates that the humidifier is inactive.

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Increasing the airflow speed

First, check the current humidity level in the room.

Press the information button on the remote control until you reach the relative humidity information screen.

If the ambient humidity level is higher or lower than the target humidity, increasing the airflow speed should help you reach your target.

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Your machine is engineered to purify and humidify single rooms, so you should use it where you spend the majority of your time at home.

When placing the machine, allow for a few feet of clearance on all sides so that the air can circulate effectively. Place it away from radiators, draughts or air vents. Turn off any air conditioning and keep doors and windows closed during use.

If the machine is being used in a large open space with windows and doors open, it may take longer to reach the humidity level.

Has this resolved the problem?

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Troubleshooting image

Your machine will alert you when it needs you to carry out a Deep clean cycle. If you are connected to the Dyson Link app, you will receive a notification message.

If you are not using the Dyson Link app, the LCD screen on your machine will alert you and the Deep clean cycle button will light up.

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Press the Deep clean cycle button

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

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Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

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Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

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Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

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Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

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Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

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Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

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Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

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Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

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Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

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Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

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Has this resolved the problem?

Evaporator

The Dyson Purifier Humidify+Cool uses an evaporator to humidify the air. The room is humidified without the need for a cloud of mist. Instead, there will be an indication on the display when the machine is humidifying.

A water droplet animation on the display screen indicates that the machine is humidifying.

The water level in the tank will slowly decrease while your machine is humidifying.

The water will be depleted very slowly. Please allow a reasonable amount of time to pass before observing any change.

Is there anything else we can help with?

Water level

The water level in the tank will slowly decrease while your machine is humidifying.

The water will be depleted very slowly. Please allow a reasonable amount of time to pass before observing any change.

Which mode is your machine in?

Auto humidify mode

While in Auto humidify mode, the onboard sensors will intelligently adjust the settings of the machine according to the temperature and humidity of your room.

Room humidity

Your machine will pause when the target room humidity has been reached, switching on again when the room humidity levels drop.

Airflow speed

The airflow speed will increase until the target humidity level has been reached.

Is the machine working as expected?

Manual mode

Switch the machine to Manual mode.

Target humidity

In Manual mode, your machine will only humidify if the target humidity is higher than the ambient humidity.

Manually setting the humidity level

You can choose from 30%, 40%, 50%, 60% or 70%, using either the remote control or the Dyson Link app.

A water droplet animation on the display screen indicates that the machine is humidifying.

Increasing the airflow speed will help you to reach your target humidity.

Is the machine working as expected?

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Target humidity

In Manual mode, your machine will only humidify if the target humidity is higher than the ambient humidity.

Manually setting the humidity level

You can choose from 30%, 40%, 50%, 60% or 70%, using either the remote control or the Dyson Link app.

Check your ambient humidity

The maximum setting on your machine is 70% humidity. If the ambient humidity of the room is 70% or higher, your machine will not humidify.

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If the ambient humidity is lower than 70%, we recommend that you increase your target humidity to 70%. Your machine should start to humidify.

A water droplet animation on the display screen indicates that the machine is humidifying.

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Increasing the airflow speed will help you to reach your target humidity.

Water level

The water level in the tank will slowly decrease while your machine is humidifying.

The water will be depleted very slowly. Please allow a reasonable amount of time to pass before observing any change.

Is the machine working as expected?

Auto humidify mode

When in Auto humidify mode, the onboard sensors will intelligently adjust the settings of the machine according to the temperature and humidity of your room.

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Room humidity

Your machine will pause when the target room humidity has been reached, switching on again when the room humidity levels drop.

To turn off Auto humidify mode or to change the humidity levels manually, press the Humidity control button.

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Manually setting the humidity level

You can choose from 30%, 40%, 50%, 60% or 70%, using either the remote control or the Dyson Link app.

Troubleshooting image

A water droplet animation on the display screen indicates that the machine is humidifying.

If your machine has stopped humidifying, check to see if the target humidity has been reached or is lower than the ambient humidity.

The humidification dial on your LCD screen shows the current room humidity in grey, and the target humidity in blue.

When your machine is humidifying, the dial will appear blue. A grey dial indicates that the humidifier is inactive.

Has this resolved the problem?

Display screen

If your machine has stopped humidifying for another reason, there may be an indication on the display screen as to why.

Wrong PSU warning

Your machine will only operate using the power supply unit provided. If you are using a third party power supply, your machine will not operate and instead will display this warning graphic.

Please ensure you are using either the power supply unit provided or a genuine Dyson replacement part.

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Are you using the PSU provided with the machine?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Check the electrics

Check that the household electrics are on.

Check the plug and power cord for signs of damage.

Try the machine in a different plug socket.

Ensure the cable is firmly plugged into the back of the machine.

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Has this resolved the problem?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Is this the first time this issue has occurred?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Remove the tank

Push down the water tank release buttons. Slide the water tank out of your machine and unclip the cap.

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Check the pump column for signs of damage.

Place the pump column on a clean, soft cloth and allow it to dry for 24 hours.

Refit the tank

Replace the cap and secure the cap clips in place.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine until it clicks securely in place.

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Has this resolved the problem?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Check the drip tray

Your machine will show this alert if the evaporator's drip tray has overflowed.

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Remove the filter shrouds

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open.

Remove the evaporator

Take the evaporator out of the machine.

Mop up any spilt water with a dry cloth.

Insert the evaporator

Hold the evaporator by the handle and push it into the machine until it slots into place.

With the evaporator in place, close the inner door making sure it clicks firmly shut.

Has this resolved the problem?

Important: don’t turn off or unplug your machine as the cleaning instructions will appear on the LCD screen.

Drip tray overflow

If your machine is still displaying this alert, we recommend running a Deep clean cycle.

Deep cleaning your machine

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

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Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

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Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

Half fill the tank

Carry the water tank by its handle to the tap.

Remove the cap and evaporator. Fill the water tank halfway to the Max level with cold tap water.

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Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Troubleshooting image

Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

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Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

Troubleshooting image

Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

Troubleshooting image

Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

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Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

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Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

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Has this resolved the problem?

Check the cap and connections

This indicates that there is an issue with the pump column.

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Remove the tank

Push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine.

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Check the pump column for signs of damage.

Make sure that the cap on the water tank is dry. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Troubleshooting image

Refit the tank

Replace the cap and secure the cap clips in place.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine until it clicks securely in place.

Troubleshooting image

Has this resolved the problem?

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

Troubleshooting image

Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

Troubleshooting image

Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

Half fill the tank

Carry the water tank by its handle to the tap.

Remove the cap and evaporator. Fill the water tank halfway to the Max level with cold tap water.

Troubleshooting image

Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Troubleshooting image

Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Troubleshooting image

Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

Troubleshooting image

Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

Troubleshooting image

Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

Troubleshooting image

Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

Troubleshooting image

Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

Troubleshooting image

Has this resolved the problem?

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Refill the tank

This indicates that the water tank is empty and needs to be refilled.

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Before you remove the water tank, make sure humidification modes are turned off and the water tank is empty.

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Remove the tank

Push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine.

Carry the water tank by its handle to the tap, and unclip the cap.

Troubleshooting image

Fill the tank

Fill the water tank to the Max level with cold tap water.

Refit the tank

Replace the cap and secure the cap clips in place.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine until it clicks securely in place.

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Has this resolved the problem?

Place the pump column on a clean, soft cloth and allow it to dry for 24 hours.

Before retesting, switch the machine off and unplug the machine for 20 seconds.
Troubleshooting image

Has this resolved the problem?

Slide the water tank out of your machine and unclip the cap.

Troubleshooting image

Check the cap for signs of damage.

Replace the cap, making sure that the cap clips are secured.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine until it clicks securely in place.

Troubleshooting image

Has this resolved the problem?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Tank missing

This animation indicates that the water tank missing or has not been inserted correctly.

Slide the water tank out of your machine.

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Remove the tank

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine.

Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

Troubleshooting image

Has this resolved the problem?

This alert indicates that the ambient temperature is too low for the machine to operate.

It is displayed when the ambient temperature drops below 5℃ and there is water in the tank.

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If your display is showing this alert, raising the ambient temperature of the room should resolve the problem.

Has this resolved the problem?

Preparing to update

Your machine is preparing to update.

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Updating

Your machine is updating.

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Update complete

Your machine has finished updating.

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Is there anything else we can help with?

Is the triangle alert continuous or temporary?

Continuous alert triangle

Switch off and unplug your machine.

Leave it for 10 seconds and then plug your machine back in and switch it on.

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Has this resolved the problem?

Did the alert appear after performing a deep clean?

Remove the pump column

Switch off and unplug your machine.

Remove the water tank and pump column.

Place the pump column on a clean, soft cloth and allow it to dry for 24 hours.

Reassemble your machine, ensuring that the pump column is dry.

Has this resolved the problem?

Does the triangle alert only appear when oscillating?

Does the alert appear for a second then disappear?

Switch off and unplug your machine.

Leave it for 10 seconds and then plug your machine back in and switch it on.

Has this resolved the problem?

If the alert appears on the LCD screen and then disappears, continue to use your machine.

We recommend connecting your product to the Wi-Fi and enabling automatic updates.

Has this resolved the problem?

Switch off and unplug your machine.

Leave it for 10 seconds and then plug your machine back in and switch it on.

Has this resolved the problem?

Unlike our purifiers which oscillate from the base up, the Dyson Purifier Humidify+Cool has two oscillating channels within the amplifier loop.

Ensure the correct button on the remote control is being pressed.

Point the remote control directly at the front of the machine when pressing the button.

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Press the Oscillation button to cycle through the oscillation options. Choose from 0°, 45°, 90° or Breeze mode.

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Are the oscillators now moving?

Test the remote control

Test the other buttons on the remote control.

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Point the remote control directly at the front of the machine when pressing the button.

Troubleshooting image

Do the other buttons on the remote work?

Is your machine linked to the Dyson Link app?

Adjust the oscillation settings using the remote controls within the Dyson Link app.

Does the machine oscillate if using the Dyson Link app?

Replacing the remote control battery

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Unscrew the remote control's battery compartment.

Troubleshooting image

Loosen the base and pull it away from the remote. Replace the battery with type CR 2032.

Troubleshooting image

Has this resolved the problem?

Ensure the correct button on the remote control is being pressed.

Point the remote control directly at the front of the machine when pressing the button.

Troubleshooting image

Press the Oscillation button to cycle through the oscillation options. Choose from 0°, 45°, 90° or Breeze mode.

Pause the oscillation at any point by pressing the Oscillation button.

Press the Oscillation button again to resume.

To reset the direction to the centre, press and hold the Oscillation button for two seconds.

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Has this resolved the problem?

Test the remote control

Test the other buttons on the remote control.

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Point the remote control directly at the front of the machine when pressing the button.

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Do the other buttons on the remote work?

Purifying

When in Auto purify mode, the onboard sensors will intelligently adjust the settings of your machine according to the air quality.

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Air quality

Your machine will pause when the target air quality has been reached, switching on again when the air quality levels drop.

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Is there anything else we can help with?

Understanding pollutant levels

When a pollutant causes the air quality to drop, the relevant icon will appear on your LCD screen.

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The coloured bar on the left of the screen will indicate how much of the pollutant is present, and will continually update as your machine purifies the air.

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Pollutants may be present at varying levels at the same time. Your machine will detect pollutants and display the appropriate colour for each of them. For example, you may have a good level of PM2.5 and a very poor level of NO2.

Good

When the green section of the coloured bar is highlighted, your machine is detecting a very low level of the type of pollutant.

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Fair

When the yellow section of the coloured bar is highlighted, your machine is detecting a moderate level of the type of pollutant.

Poor

When the orange section of the coloured bar is highlighted, your machine is detecting a high level of the type of pollutant.

Very poor

When the red section of the coloured bar is highlighted, your machine is detecting a very high level of the type of pollutant.

Extremely poor

When the dark red section of the coloured bar is highlighted, your machine is detecting an extremely high level of the type of pollutant.

Severe

When the purple section of the coloured bar is highlighted, your machine is detecting a severe level of the type of pollutant.

Is there anything else we can help with?

Reset the machine

Press and hold the power button on the machine for approximately 20 seconds.

The Wi-Fi light will flash both green and white in a rapid sequence of flashing lights, before switching itself off.

Once this sequence has been completed, the machine will have been reset and you can release the power button.

Has this resolved the problem?

Apologies. We can't help you online.

But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622

Remote control check

Are you using a remote control for other appliances (such as a TV) near the machine?

Please select the appropriate option

Is the machine under direct sunlight or flourescent light?

Please select the appropriate option

The sensor on the machine that receives the infrared signal from the remote control may malfunction when exposed to direct sunlight or fluorescent light.

Please move the machine so that is not under direct sunlight or fluorescent light.

Has this resolved the issue?

Unplug the machine

The operation of the remote control for other appliances is likely interfering with your Dyson machine.

To prevent further interference, unplug your Dyson machine when not in use.

Has this resolved the issue?

Check the power cable

Ensure the cable is firmly plugged into the back of the machine.

Troubleshooting image

Check the plug and power cord for signs of damage.

Try the machine in a different plug socket.

Check the electrics

Check that the household electrics are on.

Has this resolved the problem?

Check the power cable

Ensure the cable is firmly plugged into the back of the machine.

Troubleshooting image

Check the plug and power cord for signs of damage.

Try the machine in a different plug socket.

Check the electrics

Check that the household electrics are on.

Has this resolved the problem?

Press the Standby on/off button on your Dyson purifier humidifier fan to stop your machine.

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Does the machine turn off?

Press the Standby on/off button on your remote control to stop your machine.

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Ensure the correct button on the remote control is being pressed.

Point the remote control directly at the front of the machine when pressing the button.

Does the machine turn off using the remote?

Test the remote control

Test the other buttons on the remote control.

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Point the remote control directly at the front of the machine when pressing the button.

Troubleshooting image

Do the other buttons on the remote work?

Replacing the remote control battery

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Unscrew the remote control's battery compartment.

Troubleshooting image

Loosen the base and pull it away from the remote. Replace the battery with type CR 2032.

Troubleshooting image

Has this resolved the problem?

Is your machine linked to the Dyson Link app?

We're glad the problem's been solved.

Please let us know if there's anything else we can help you with.

Press the Standby on/off button using the remote controls within the Dyson Link app.

Does the machine turn off using the app?

Using the product with a filter or evaporator not produced by Dyson may have a detrimental effect on the functionality of the machine. Any issues therefore caused by using one or both of these, will not be covered under the products guarantee.

Please select the appropriate option

Do not plug in or attempt to use the machine in this condition.

Apologies. We can't help you online.

But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622

Check and clean the machine

To always get the best performance from your Dyson purifying humidifying fan, it's important to regularly clean it and check for blockages.

Cleaning your machine

If your machine is dusty, wipe it with a damp lint-free cloth.

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Look for blockages in the air inlet holes in the shrouds, the small aperture inside the amplifier loop, and the soft plastic mesh visible inside the machine when the evaporator is removed.

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Use a soft brush to remove dust and debris.

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Don't use detergents or polishes to clean your machine.

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Has this resolved the problem?

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Is there anything else we can help with?"

Has this resolved the problem?

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Is this the first time this issue has occurred?

Apologies. We can’t help you online.

But our Customer Support Team will be able to solve your problem.

Call us on 1-877-397-6622

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Troubleshooting image

Your machine will alert you when it needs you to carry out a Deep clean cycle. If you are connected to the Dyson Link app, you will receive a notification message.

If you are not using the Dyson Link app, the LCD screen on your machine will alert you and the Deep clean cycle button will light up.

Troubleshooting image

Press the Deep clean cycle button

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

Troubleshooting image

Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

Troubleshooting image

Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

Troubleshooting image

Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Troubleshooting image

Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

Troubleshooting image

Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Troubleshooting image

Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

Troubleshooting image

Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

Troubleshooting image

Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

Troubleshooting image

Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

Troubleshooting image

Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

Troubleshooting image

Has this resolved the problem?

Flashing Deep clean cycle button

The Deep clean cycle button will flash when a Deep clean cycle is due or when a cycle has been activated.

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The machine will not be operational while a Deep clean cycle is active.

If the button has been pressed accidentally, cancel the Deep clean cycle to continue using your machine.

To cancel the Deep clean cycle, press and hold the Deep clean cycle button for five seconds.

Troubleshooting image

Has this resolved the problem?

Deep cleaning your machine

If the Deep clean cycle button is still flashing, running a Deep clean cycle may resolve the problem.

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Troubleshooting image

Your machine will alert you when it needs you to carry out a Deep clean cycle. If you are connected to the Dyson Link app, you will receive a notification message.

If you are not using the Dyson Link app, the LCD screen on your machine will alert you and the Deep clean cycle button will light up.

Troubleshooting image

Press the Deep clean cycle button

Press the Deep clean cycle button on the front of your machine and your instructions will be shown on the LCD screen.

To cancel the Deep clean cycle at any point, press and hold the Deep clean cycle button for five seconds.

Troubleshooting image

Remove the tank

Push down on the outer cover release buttons to remove the outer covers. The inner door will spring open. Put the outer covers to one side as you carry out the Deep clean cycle.

Push down the water tank release buttons on the sides of your machine. Slide the water tank out of your machine and unclip the cap.

Troubleshooting image

Remove the evaporator

Remove the evaporator from your machine, place it in the water tank and refit the cap.

Troubleshooting image

Keep the cap dry

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Troubleshooting image

Make a descaling solution

Measure out 150g of citric acid and place it in the water tank.

Agitate gently until all the citric acid has dissolved.

Place the evaporator in the water tank. Fill the water tank to the Max level with cold tap water.

Troubleshooting image

Replace the cap

Replace the cap and secure the cap clips in place.

Wipe off any excess water to avoid drips.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Troubleshooting image

Refit the tank

Slide the water tank back into your machine until it clicks securely in place.

When prompted by the LCD screen, press the Deep clean cycle button.

The Deep clean cycle will start and the LCD screen will show a countdown timer.

Troubleshooting image

Remove the tank

When the LCD screen shows the Deep clean cycle is complete, push down the water tank release buttons on the sides of your machine.

Slide the water tank out of your machine. Carry the water tank by its handle to the tap.

Troubleshooting image

Rinse

Unclip the cap, take the evaporator out of the water tank and rinse it under a cold tap.

Wipe away any excess water to avoid drips and place the evaporator to one side.

Rinse the water tank under a cold tap. Wipe the inside of the tank to remove any excess solution and any debris.

Troubleshooting image

Refill the tank

Refill the water tank to the Max level. Wipe off any excess water and replace the cap, making sure that the cap clips are secured.

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Reassemble

Push the evaporator back into your machine, making sure that it is securely in position.

Close the inner door and replace the outer covers.

Make sure the cap is completely dry. If wet, wipe thoroughly with a dry cloth.

Slide the water tank back into your machine and make sure it is securely in place.

Troubleshooting image

Has this resolved the problem?

This may be caused by water that has been sitting in the machine for too long.

This can likely be resolved by running a Deep clean cycle

Please select the appropriate option

Important: don’t turn off or unplug your machine as the cleaning instructions will appear on the LCD screen.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.

Troubleshooting image

Please follow the steps in the video.

Find the text version of the step-by-step guide instead, under "Has this resolved the problem?"

Keep the cap on the water tank dry when you run a Deep clean cycle or fill the tank. It contains power connections and should not be washed. If wet, wipe thoroughly with a dry cloth. Make sure the cap and connections are completely dry before refitting.

Deep cleaning your machine

To always get the best performance from your Dyson purifying humidifying fan, it is important to carry out regular deep cleaning to remove any limescale.

Before and after long periods where humidification is not used, we recommend you run an additional Deep clean cycle.

In hard water areas, you may need to run the Deep clean cycle more frequently. We recommend you use filtered water to always get the best performance from your machine.