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Dyson Pure Hot+Cool™ HP04 (Black/Nickel)
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Please select the appropriate option

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 you with?"

When the appliance detects that the non-washable carbon filters need replacing the display on the appliance will show a full bar.

Unplug the appliance from the mains electricity supply. Slide the buttons down on either side of the shrouds. The shrouds will release with the glass HEPA filters attached.

To remove the carbon filters: press the tabs on both sides of the filters.

Dispose of the carbon filters in the bin. Dispose of used filter units in accordance with local regulations.

Push the new carbon filters onto the base until secure.

Push the shrouds until they click back into position in the base.

Plug the appliance in to the mains electricity supply and switch on.

Press and hold the Timer button on the remote control. The display on the appliance will countdown from five, finishing with the default screen. The carbon filter level will be reset and the appliance is ready to use.

Is there anything else we can help you with?

Please select the appropriate option

On/Off

Ensure the machine is switched on.

Ensure correct button on remote is being pressed.

Point the remote directly at the front of the machine while pressing the button.

Does the airspeed change?

We're glad the problem's been solved.

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

Remote control

Point the remote directly at the front of the machine while pressing the button.

Test cooling mode.

Test the heating control.

Test the oscillation.

Test the sleep timer.

Do the other buttons on the remote work?

Changing the battery

Unscrew the remote control's battery compartment.

Replacing the remote control battery

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

Has changing the battery resolved the problem?

App airflow control

Access the App to control the airflow.

Change settings within the app.

Has using the app 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

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

Is your machine linked to the Dyson Link app?

Test airspeed change using the Dyson link app.

Does the airspeed change using the Dyson Link app?

Heating elements

The heating elements turn on one at a time and so this is to be expected when the machine first turns on.

Run the purifier for 1 minute at the highest temperature setting.

NB: The heating elements will only work with the airflow facing forwards.

Has this resolved the problem?

Target temperature

The heater will not operate unless the target temperature is above the room temperature. The temperature set on the machine is the target temperature of the room, not the temperature of the fan; the temperature from the fan when in heating mode will not change.

Press the red temperature control button until the digital display on the Main body shows 37°C.

Has changing the temperature to 37°C resolved the problem?

Please select the appropriate option

Intermittent power

Dyson fan heaters and hot and cool purifiers have a positive safety feature where the machine deliberately switches off after 9 hours of continuous heating. This would also occur if the machine is set to auto and providing heat constantly for 9 hours. NB: This feature cannot be switched off.

Has this resolved the problem?

Check using the remote control

Press the oscillation button on the remote.

If the using the buttons on the remote doesn't work, try changing the batteries.

Removing the battery

Unscrew the remote control's battery compartment.

Loosen the base and pull it away from the remote.

Replace the battery with type CR 2032.

Has this resolved the problem?

Is your machine linked to the Dyson Link app?

Check with the Dyson Link app

Try using the Dyson Link app to control the oscillation.

Does the oscillation work when using the Dyson Link app?

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.

NB: There will be a 3 second delay when switching on after plugging in for the first time or when changing plug sockets.

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

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

Press the ON/OFF button on the Main body of the machine.

Does the machine turn off?

Point the remote directly at the front of the machine while pressing the button.

Does the machine turn off using the remote?

Open the Dyson Link app.

Under your Purifier, open the remote on the app and press the ON/OFF button.

Does the machine turn off using the Dyson Link app?

Open the Dyson Link app.

Under your Purifier, open the remote on the app and press the ON/OFF button.

Does the machine turn off using the Dyson Link app?

What sort of smell?

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 machine

The following areas should be checked and cleaned to maintain the machine's performance.

Clean loop amplifier with a dry or damp cloth.

Clean the Main body with a dry cloth.

Clean inlet grille with a dry cloth or soft brush.

Your filter may need replacing.

Check filter life within the app, on the display screen, or for excessive build up of dust within the inlet.

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

Please follow the steps in the video.

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

When the appliance detects that the non-washable carbon filters need replacing the display on the appliance will show a full bar.

Unplug the appliance from the mains electricity supply. Slide the buttons down on either side of the shrouds. The shrouds will release with the glass HEPA filters attached.

To remove the carbon filters: press the tabs on both sides of the filters.

Dispose of the carbon filters in the bin. Dispose of used filter units in accordance with local regulations.

Push the new carbon filters onto the base until secure.

Push the shrouds until they click back into position in the base.

Plug the appliance in to the mains electricity supply and switch on.

Press and hold the Oscillation button on the remote control. The display on the appliance will countdown from five, finishing with the default screen. The carbon filter level will be reset and the appliance is ready to use.

Has this resolved 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?"

When the appliance detects that the nonwashable glass HEPA filters need replacing the display on the appliance will show a full bar.

Unplug the appliance from the mains electricity supply. Slide the buttons down on either side of the shrouds.

The shrouds will release with the glass HEPA filters attached.

Empty the glass HEPA filters directly into the bin by pushing in both the purple tabs on the shrouds. Dispose of used filter units in accordance with local regulations.

Push the new glass HEPA filters into the shrouds until secure. Push the shrouds until they click back into position in the base.

Press and hold the Night mode button on the remote control. The display on the appliance will countdown from five, finishing with the default screen. The glass HEPA filter level will be reset and the appliance is ready to use.

Has this resolved the problem?

When your purifier switches from front to rear airflow there may be a clicking sound as the motor adjusts direction.

This is a normal sound for the purifier to make and is not an indicator of anything wrong with your machine.

Is the clicking noise only occurring when the machine is oscillating?

Check base

Check around the base of the machine for any debris or obstructions.

Please try taking the filters off, then reattaching them to ensure they are correctly clicked into place. When attaching the filters, press in and up, and check there are no gaps or loose areas.

If the filters are not attached correctly, a triangle warning may show on your screen. If this happens, please reattach the filters securely.

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

Continuous monitoring

The continuous monitoring option is used for air quality, temperature and humidity data to be relayed to the machine and app at all times, even when you have turned the purifier off. The sensors have small fans that maintain airflow for continuous monitoring, but this should not cause any audible noise interference.

There may be instances when the display shows green, indicating high air quality, but the fan speed is still high. This is due to the machine constantly seeking to maintain a good air quality, and in scenarios such as rooms with leaky windows, the machine must work harder to maintain a good air quality.

This will only happen when the machine is set on auto. To turn off Auto mode, please select Manual mode, either using the remote control or on the app.

Please check the following on the app:

Swipe up to reveal the setting tab and tap to open options.

Swipe down to find the continuous monitoring option and tap to open.

Turn OFF the 'Collect data when in standby' option. (The icon will turn grey when turned off). Save the change by pressing 'Done' at the top right of the page.

Continuous monitoring can now also be turned on/off by pressing the 'Auto' button on the remote control for five seconds.

Retest the machine.

Has the noise stopped?

Restart the machine

Unplug the machine and leave it for 10 seconds.

Ensure the power cord is plugged into the centre of the base.

Plug the machine back in and retest.

Has the noise stopped?

Unplug the appliance from the mains electricity supply. Slide the buttons down on either side of the shrouds.

The shrouds will release with the glass HEPA filters attached.

Plug the machine back in and retest.

Has removing the filters stopped the noise?

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

When not in use, unplug from the mains electricity supply.

To remove the carbon filters: press the tabs on both sides of the filters.

Plug the machine back in and retest.

Has removing the filters stopped the noise?

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

Please ensure you have the most up to date software downloaded before beginning any checks. We strongly recommended enabling auto-updates in your Dyson Link app settings, to allow the most up to date software to be installed as soon as it is available.

The colour of the numbers and readings on the display are linked to the air quality of the respective category.

Green denotes a high air quality, with low pollutants, and red, low air quality with a high amount of pollutants.

Different categories can have different levels of pollutants at the same time, and will therefore display in different colours.

Has this resolved the problem?

The interface is designed to stay on the screen you select. Please ensure the remote is not being accidentally pressed.

Has this resolved the problem?

There may be times when the display is showing green but the fan speed is still high.

This is due to the machine always trying to maintain high air quality. For example, in a room with leaky windows, the machine has to work harder via a higher Fan speed to maintain a high air quality.

If you want the fan to be quieter, you can choose to change the airflow direction to face backwards, or turn the machine to manual mode and lower the airspeed.

Has this resolved the problem?

Fault

Reset the machine.

Unplug the machine and leave it for 10 seconds.

Plug the machine back in and retest.

Has this resolved the problem?

Night mode is not working

When in Night mode, your machine will automatically sense the ambient light level and adjust the resting screen brightness accordingly.

If the room is bright, (for example, the lights are on), the screen's display will be set to minimum brightness. If the room is dark (lights off) the screen is turned off.

In both scenarios, when the machine is interacted with, the screen brightness will uplift.

Has this resolved the problem?

If your screen is not displaying correctly (incorrect reading, white screen etc), please ensure you have updated all the software to the latest version.

When setting up a product, we strongly recommend enabling auto-updates, to allow your machine to easily download the latest software.

To enable auto-updates, open the Dyson Link app and click the cog at the top right of the home screen.

Click 'Your Purifier's settings'.

Scroll down to 'Software' and enable Auto-update.

Has this resolved the problem?

Restart the machine

Switch off and unplug the machine.

Ensure all outside doors and windows are closed.

Vacuum the two sensor slots to the left of the LCD screen with a Dyson brush attachment.

Plug in and test the machine.

Has this resolved the problem?

Switch off and unplug the machine.

Move the machine to another room.

Plug in and test the machine.

Has this resolved the problem?

The first time your purifier is turned on, the gas sensors will perform a self-calibration which takes one hour after which time they will work normally.

If the power cuts out within the hour, the initialisation period will continue from where it left off.

How long has your purifier been turned on for?

If your machine is new out the box and has not been turned on for over an hour, please allow a full hour to complete, with your purifier plugged into a secure power source.

Once the full hour has elapsed, turn the machine off and then on again, either with the main power button on the machine, or the remote control.

Has this resolved the problem?

If your purifier has been plugged into a stable power source for over one hour, and the VOC and/or NO2 screens still do not show, please unplug your machine from the wall, leave for one minute, plug back in, and then turn on using either the main power button, or the button on the remote.

Do the VOC and/or NO2 readings now show?

Check remote control

Ensure the correct button on the remote is being pressed.

Has this resolved the problem?

Remote control

Point the remote directly at the front of the machine while pressing the button.

Test cooling mode.

Test the heating control.

Test the airflow.

Test the sleep timer.

Do the other functions on the remote work?

Changing the battery

Unscrew the remote control's battery compartment.

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

Has changing the battery solved the problem?

Check with the Dyson Link app

Open the app and set the machine to oscillate.

If you do not have the Dyson Link app set up, please select 'No' as the next option.

Does the machine now oscillate?

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 machine base

Ensure all the feet are attached to the base of the machine.

Place the purifier on a flat, non-slip surface.

Check remote control

Ensure the correct button on the remote is being pressed.

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

Point the remote at the base of the purifier and test the controls.

Has this resolved the problem?

Check if the Dyson Link app is working.

Do the controls on the Dyson Link app work?

Changing the battery

Unscrew the remote control's battery compartment.

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

Has changing the battery solved 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

Use both hands to lift the appliance out of the box, taking care to hold by the base of the appliance only. Do not lift out by the loop amplifier.

Slide the buttons down on either side of the shrouds. The shrouds will release with the glass HEPA filters attached.

Take the carbon filters out of the box and remove the protective packaging.

Attach both carbon filters to the appliance.

Position the shrouds onto the base and push gently until they click securely into place. Place the remote control on the top of the appliance with the buttons facing down. Plug in and switch ON.

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.

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 you with?"

When the appliance detects that the nonwashable glass HEPA filters need replacing, the display on the appliance will show a full bar.

Unplug the appliance from the mains electricity supply. Slide the buttons down on either side of the shrouds.

The shrouds will release with the glass HEPA filters attached.

Empty the glass HEPA filters directly into the bin by pushing in both the purple tabs on the shrouds. Dispose of used filter units in accordance with local regulations.

Push the new glass HEPA filters into the shrouds until secure. Push the shrouds until they click back into position in the base.

Plug the appliance in to the mains electricity supply and switch on.

Press and hold the Night mode button on the remote control. The display on the appliance will countdown from five, finishing with the default screen. The glass HEPA filter level will be reset and the appliance is ready to use.

Is there anything else we can help you with?

Information menu

Scroll through the options to monitor the performance of your appliance.

The menu will also allow you to access information about the pollutants in the air and the temperature and humidity levels.

When a particular type of pollutant causes air quality to decrease, the symbol for that pollutant will show in the display.

Indoor air quality - 12 seconds

Monitor the current air quality with a graph showing the last 12 seconds of data.

Indoor air quality - 24 hours

Monitor the air quality with a graph showing the last 24 hours of data.

Particulate matter (PM2.5)

Microscopic particles up to 2.5 microns in size, suspended in the air we breathe. These include smoke, bacteria and allergens.

Particulate matter (PM10)

Larger microscopic particles up to 10 microns in size, suspended in the air we breathe. These include dust, mould and pollen.

Nitrogen dioxide and other oxidising gases

These potentially harmful gases are released into the air by combustion, for example the burning gas when cooking and in vehicle exhaust emissions.

Volatile organic compounds

VOC’s are typically odours that may be potentially harmful. These can be found in cleaning products, paints and new furnishings.

Indoor temperature

Monitor the ambient temperature to help maintain a comfortable environment.

Indoor humidity

The amount of water vapour in the air, shown as a percentage of the maximum possible humidity at the current temperature.

Filters

The amount of pollution captured by the filters is shown in the display. When the filter is full, the display will flash to remind you which filter needs changing.

WiFi

The current status of connection to the WiFi network.

Is there anything else we can help with?

Using the remote control

To operate, point the remote control toward the front of the base.

On/Off

Press the power ON/OFF button on the appliance or remote control to stop the purifier. The appliance will continue to monitor the air quality.

Airflow speed

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

Oscillation On/Off

Press the Oscillation button to scroll through the options from 0 to 350.

Customise your oscillation settings in the Dyson Link app and it will appear as an option as you scroll through.

Information menu

Scroll through the options to monitor the performance of your appliance.

The menu will also allow you to access information about the pollutants in the air and the temperature and humidity levels.

When a particular type of pollutant causes air quality to decrease, the symbol for that pollutant will show in the display.

Auto mode

Set your appliance to Auto mode and the on-board sensors will intelligently adjust the settings of the appliance according to the air quality.

Air quality: your appliance will pause when the target air quality has been reached, switching on again when the air quality levels drop.

Airflow speed: The airflow speed will increase until the target air quality and temperature have been reached.

Night mode: Your appliance will only run with Airflow speeds from 1 to 4.

Airflow direction

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

Your appliance will continue to purify in both settings.

Heating mode will only function when the airflow direction is set to the front. If airflow direction is changed to the back, your purifier will change to cooling mode.

Night mode

Night mode will dim the display and the appliance will run more quietly, making it ideal for use while sleeping. If Auto mode has been set, Night mode will reduce airflow speeds to range from 1 to 4. You can manually change the airflow from 1-10. Customise your Night mode settings in the Dyson Link app.

Sleep timer

Your appliance will turn off automatically after the selected amount of time.

To set the time: Press the button to scroll through the time options.

Once activated press the Sleep timer button once to see the time selected.

To cancel the Sleep timer: Press the Sleep timer button twice.

Cooling mode

Press the blue Cooling mode button to enter Cooling mode.

To adjust the airflow speed use the airflow control button or use the auto purification mode for automatic control.

Heating control

Use the heating control to set the desired room temperature. The appliance will then automatically manage the temperature until the target has been reached.

Is there anything else we can help with?

Please open the PDF for the user guide.

Is there anything else we can help with?

Finding the machine serial number

The serial number and WiFi information can be found in the following locations:

On the front of the user guide.

On a removable sticker on the front of the purifier.

On your purifier, located underneath the filter.

Is there anything else we can help with?

Cleaning the machine

The following areas should be checked and cleaned to maintain the machine's performance:

Clean the loop amplifier with a dry or damp cloth.

Clean the Main body with a dry cloth.

Clean the shroud with a dry cloth or soft brush.

Is there anything else we can help with?

Replacing the 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 you with?"

Unscrew the remote control's battery compartment.

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

Is there anything else we can help you with?