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Dyson Purifier Cool Formaldehyde TP09 (Nickel/Gold)
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Replacing the remote control battery
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Issue resolved
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Replacing the remote control battery - step by step
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More help required
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There is a problem with my machine
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Unusual noise
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Grinding or grating
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Clicking noise
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Issue not resolved, please speak to our Customer Support Team
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Clicking when oscillating
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Issue resolved
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Humming noise when turned off
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Whining or whistling noise
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Remove both filters
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Replacement part required
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Performance
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The airspeed won't change
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Test the other remote buttons
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The other buttons on the remote are working
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Replacement part required
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Check your app
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Replacement part required
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Changing the battery
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Airspeed not as powerful
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Issue not resolved, please speak to our Customer Support Team
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Power or electrical issue
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Issue not resolved, please speak to our Customer Support Team
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No power
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Issue not resolved, please speak to our Customer Support Team
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No power to machine
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The power cord is damaged
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Airflow but no oscillation
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The oscillation works, but no airflow
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Test the remote control
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Press the button
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Check the remote
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Check the Dyson Link app
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Replacement part required
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Check the app
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Unusual smell
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Issue not resolved, please speak to our Customer Support Team
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Dusty
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Issue not resolved, please speak to our Customer Support Team
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Visible issue
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Reset the machine
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Oscillation problem
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The oscillation won't turn off
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Check other remote functions
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Issue not resolved, please speak to our Customer Support Team
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Changing the battery
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Changing the battery has not resolved the problem
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Check with the Dyson Link app
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Remote control doesn't work
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Remote control doesn't work
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Change the battery
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There is an issue with the display
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VOC and/or NO2 readings do not show
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Less than one hour
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More than one hour
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There is an issue with the display
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Move the machine
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Night mode is not working
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The display will not stay on my selected screen
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My display is reading green but the fan is working at high speed
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My readings are showing in different colours
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The air quality graph shows a flat line
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Humidity readings do not show
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Particulate matter readings do not show
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Temperature readings do not show
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Display icons
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Alert icon
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Indoor air quality - 12 seconds
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Indoor air quality - 24 hours
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Filters
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Indoor humidity
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Nitrogen dioxide and other oxidising gases
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Particulate matter (PM10)
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Particulate matter (PM2.5)
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Indoor temperature
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Volatile organic compounds
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Wi-Fi
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Replacement parts
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HEPA+Carbon filter
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Remote control
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Filter shroud
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User guide
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Using the remote control
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How to use Night mode
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How to use Auto mode
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How to adjust the airflow
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Where is the serial number located?
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Cleaning the machine
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Error codes
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Most common topics
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 with?"
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.
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.
Please select the appropriate option
Please select the appropriate option
Please select the appropriate option
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 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.
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 base
Check around the base of the machine for any debris or obstructions.
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
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.
Restart the machine
Unplug the machine and leave it for 10 seconds.
Plug the machine back in and retest.
Remove the filters
Switch off and unplug your machine.

To remove your HEPA+Carbon filter, push down on the buttons either side of your machine to release the outer cover. Push down on the tabs to remove the filter.

With the HEPA+Carbon filter removed, put the outer covers into position on your machine and push firmly until they both click securely into position.
Plug in and switch your machine.
You might need a replacement part.
It looks like the Dyson Genuine Filter is not working. You can solve this by ordering a new one below.
Dyson Genuine Filter
Part no. 965432-01
<p>Filter for your Dyson Purifier</p>
$99.99

Dyson Genuine Filter
Part no. 965432-01
<p>Filter for your Dyson Purifier</p>
$99.99
Please select the appropriate option
Ensure correct button on remote is being pressed to adjust the airflow.

Test the other remote buttons
Test the other buttons on the remote.
On/Off
Oscillation
Automatic mode
Night mode

Point the remote directly at the front of the machine while pressing the button.
You might need a replacement part.
It looks like the Remote Control is not working. You can solve this by ordering a new one below.
Remote Control
Part no. 969154-19
$39.99

Remote Control
Part no. 969154-19
$39.99
Test airspeed change using the Dyson link app.
You might need a replacement part.
It looks like the Remote Control is not working. You can solve this by ordering a new one below.
Remote Control
Part no. 969154-19
$39.99

Remote Control
Part no. 969154-19
$39.99
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.
Clean the machine
To always get the best performance from your Dyson purifying fan, it’s important to regularly clean it and check for blockages.
If your machine is dusty, wipe with a damp lint-free cloth.

Look for blockages in the air inlet holes on the filter and the small aperture inside the loop amplifier.

Use a soft brush to remove dust and debris.

Don’t use detergents or polishes to clean your 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
Check airflow direction
This product has dual airflow direction options. Please ensure you have directed the airflow to come out the front of the machine before beginning these checks.
You can do this by pressing the airflow direction button on the remote control.

Please select the appropriate option
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 select the appropriate option
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.

Has this resolved the problem?
Do not attempt to use the machine until the power cord has been replaced.
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 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.
Check with the Dyson Link app
Try using the Dyson Link app to control the oscillation.
Test the remote control
Ensure the correct button on the remote is being pressed.

Point the remote directly at the front of the machine while pressing the button.
Test the other remote buttons
Airflow speed

On/Off

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

Open the Dyson Link app.
Under your Purifier, open the remote on the app and press the ON/OFF button.
You might need a replacement part.
It looks like the Remote Control is not working. You can solve this by ordering a new one below.
Remote Control
Part no. 969154-19
$39.99

Remote Control
Part no. 969154-19
$39.99
Open the Dyson Link app.
Under your Purifier, open the remote on the app and press the ON/OFF button.
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 machine
To always get the best performance from your Dyson purifying fan, it’s important to regularly clean it and check for blockages.
If your machine is dusty, wipe with a damp lint-free cloth.

Look for blockages in the air inlet holes on the filter and the small aperture inside the loop amplifier.

Use a soft brush to remove dust and debris.

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

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.

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.
Please select the appropriate option
Fault
Reset the machine.

Unplug the machine and leave it for 10 seconds.
Plug the machine back in and retest.
Please select the appropriate option
Ensure correct button on remote is being pressed.
On/Off

Airflow speed

Oscillation

Automatic mode

Information

Night mode

Airflow direction

Point the remote directly at the front of the machine while pressing the button.
Check other buttons
Test the other buttons on the remote.
Airflow speed

Airflow direction

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
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.
Check with the Dyson Link app
Open the app and set the machine to oscillate.
Point the remote at the base of the purifier and test the controls.
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.
Please ensure you have the most up to date software downloaded before begining 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 avaliable.
Please select the appropriate option
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 of the box and has been turned on for less than one hour, the machine may still be calibrating. This process takes up to one hour to complete. Please leave the machine running during this time.
After one hour, turn the machine off and then on again. Press the power button on either the main body or the remote control.
Factory reset
If your purifier has been plugged into a stable power source for over one hour and the selected readings still do not show, we advise that you perform a factory reset.
Press and hold the power button on both the main body and the remote control.
Continue to hold the buttons until the LCD screen shows a countdown timer.
Once the countdown has been completed, the machine will have reset.
Your purifier will turn on automatically. Leave your machine running for one hour to perform self-calibration.
Note: By resetting the machine, your Wi-Fi network details will have been removed and your purifier will no longer be connected to the Dyson Link app. You will need to restart the connection journey.
Restart the machine
Switch off and unplug the machine.
Ensure all outside doors and windows are closed.
Vacuum the four sensor slots to the left of the LCD screen.

Plug in and test the machine.
Switch off and unplug the machine.
Move the machine to another room.
Plug in and test the machine.
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.
The display will not stay on my selected screen
The interface is designed to stay on the screen you select. Please ensure the remote is not being accidentally pressed.
My display is reading green but the fan is working at high speed
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.

My readings are showing in different colours
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.
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?
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?
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?
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?
Information menu
Press this button to scroll through the information being monitored by your Dyson purifying fan.
Information about air quality, temperature, humidity and filter levels is shown on the LCD screen.
When a particular type of pollutant causes air quality to decrease, a symbol for the pollutant will show on the LCD screen.
Alert
If your machine shows an alert icon, try turning it off and then on again. If this doesn’t clear the alert, contact Dyson Customer Care.

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

Is the machine working as expected?
Indoor air quality - 24 hours
Monitor the air quality with a graph showing the last 24 hours of data.

Is the machine working as expected?
Filters
The remaining filter life is shown on the LCD screen and will indicate when your filters need replacing.

Indoor humidity
The amount of water vapour in the air, shown as a percentage.

Is the machine working as expected?
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.

Is the machine working as expected?
Particulate matter (PM10)
Larger microscopic particles up to 10 microns in size, suspended in the air we breathe. These include dust, mould and pollen.

Is the machine working as expected?
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.

Is the machine working as expected?
Indoor temperature
Monitor the ambient temperature to help maintain a comfortable environment.

Is the machine working as expected?
Volatile organic compounds
VOCs are typically odours that may be potentially harmful. These can be found in cleaning products, paints and furnishings.

Is the machine working as expected?
Wi-Fi
The current status of connection to the Wi-Fi network.

Please select the appropriate option
You might need a replacement part.
It looks like the Dyson Genuine Filter is not working. You can solve this by ordering a new one below.
Dyson Genuine Filter
Part no. 965432-01
<p>Filter for your Dyson Purifier</p>
$99.99

Dyson Genuine Filter
Part no. 965432-01
<p>Filter for your Dyson Purifier</p>
$99.99
You might need a replacement part.
It looks like the Remote Control is not working. You can solve this by ordering a new one below.
Remote Control
Part no. 969154-19
$39.99

Remote Control
Part no. 969154-19
$39.99
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
Using the remote control
To operate, point the remote control toward the front of the base.

Standby On/Off
Press the Standby on/off button on your Dyson purifying fan or remote control to stop your machine. It 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 circulate the air around the room and scroll through the oscillation settings 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
Press this button to scroll through the information being monitored by your Dyson purifying fan.
Information about air quality, temperature, humidity and filter levels is shown on the LCD screen.
When a particular type of pollutant causes air quality to decrease, a symbol for the pollutant will show on the LCD screen.

Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine 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.

Airflow direction
Press the Airflow direction button to change the direction of airflow from front to back.
Change the airflow direction for your personal comfort.
Select the Airflow direction to Fan mode for airflow from the front for purifying and cooling.
Air will be purified continuously, whether the air is set to flow from the front or the back.

Night mode
In Night mode, your Dyson purifying fan will continue to monitor and respond to changes in air quality, but only using its quietest settings – and with its LCD screen dimmed.
Press the Night mode and Sleep timer button to scroll through the timer options.
Customise your Night mode settings in the Dyson Link app.

Night mode
In Night mode, your Dyson purifying fan will continue to monitor and respond to changes in air quality, but only using its quietest settings – and with its LCD screen dimmed.
Press the Night mode and Sleep timer button to scroll through the timer options.
Customise your Night mode settings in the Dyson Link app.

If in manual mode, the power will reduce to level 4. When Night mode is activated, if it is already below level 4, it will remain the same. This can be manually changed if desired. The display will illuminate briefly, then fade as before. If in Auto mode the power will be reduced automatically.
Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine 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.

If the air quality target is met, the air quality graph will show green. The air quality will continue to be monitored, with the fan running on a low speed in the background.
If the air quality worsens the air quality graph will show red and the purifier will automatically restart cleaning the room.
Using the remote control for Auto mode
Press the 'Auto' button on the top right corner of the remote control.

To turn Auto mode off, press the same button.
Using the app for Auto mode
Tap the remote icon on the bottom right corner of the home page.
Tap the power icon at the top of the menu and tap AUTO to select.
When Auto mode is enabled, 'Auto' is written at the top of the display.
To turn Auto mode off, press the same button.
Manual mode
Airflow can be set manually by the airflow buttons on the remote. You can choose a setting from 1 (low flow of air) through to 10 (high flow of air), and the machine home screen will show the fan speed when in manual mode.

Auto mode
Set your Dyson purifying fan to Auto mode and the onboard sensors will intelligently adjust the settings of the machine according to the air quality.
Air quality: your machine 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.

If the air quality target is met, the air quality graph will show green. The air quality will continue to be monitored, with the fan running on a low speed in the background.
If the air quality worsens, the air quality graph will show red and the purifier will automatically restart cleaning the room.
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.
Cleaning the machine
To always get the best performance from your Dyson purifying fan, it’s important to regularly clean it and check for blockages.
If your machine is dusty, wipe with a damp lint-free cloth.

Look for blockages in the air inlet holes on the filter and the small aperture inside the loop amplifier.

Use a soft brush to remove dust and debris.

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

Further help
Dyson Purifier Cool Formaldehyde TP09 (Nickel/Gold)