
Let's get your machine working
Dyson Hot+Cool™ fan heater (Black/Nickel)
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Troubleshooting
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Power or electrical issue
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Remote control doesn't work
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Issue resolved
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Remote control doesn't work
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Change the remote battery
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Replacement part required
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Intermittent power
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Hard reset
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Issue not resolved, please speak to our Customer Support Team
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Check the machine
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LED won't disappear
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No power but the LED is on
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Remote control doesn't work
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Replace the battery
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Test remote
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Replacement part required
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Camera test
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Willing to test LED
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No LED
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Replacement part required
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Replace the batteries
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Replacement part required
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Unusual noise
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Issue not resolved, please speak to our Customer Support Team
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Issue not resolved, please speak to our Customer Support Team
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Whining or whistling noise
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Humming noise
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Issue resolved
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Performance
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Airspeed won't change
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Airspeed won't change
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Airflow not as powerful
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Focused flow or diffused flow mode not working
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The fan oscillates but there is no airflow
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Issue not resolved, speak to our Customer Support Team
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My machine is not cooling
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The temperature from the fan does not increase
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The airflow mode won't change
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Issue not resolved, speak to our Customer Support Team
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Replace batteries
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Replacement remote required
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Replacement part required
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Issue not resolved, speak to our Customer Support Team
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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 smell
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Visible issue
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C code on display
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F code on display
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F2
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F3
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There is an H code on the display
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No power but the LED is on
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Part broken
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Replacement part required
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Replacement part required
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Issue not resolved, please speak to our Customer Support Team
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There's a problem with the tilt mechanism
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Popular queries
Please select the appropriate option
Please select the appropriate option
Please select the appropriate option
Test the other buttons on the remote
1) On/Off 2) Cooling mode 3) Airflow speed 4) Heating control 5) Sleep timer 6) Oscillation 7) Focused mode 8) Diffused mode

We need a little more information to help us solve your issue.
Please contact our customer service team via live chat.
Press power button
Airflow can also be set on the machine. Press and hold the power button to roll through settings 1 to 10.

Change the remote battery
Loosen the base and pull it away from the remote.

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

Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
Power cycle
Before following the steps, press the power button with a firm touch for 1 second.

Hard reset
If the power cycle does not work try a 'hard reset'.
Turn the power OFF and unplug the machine, or switch off at the mains socket, for 30 seconds and then turn back ON.

Plug the machine back in and retest.
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Check the machine
The heater is fitted with automatic cut-out switches that operate if the heater tips over or overheats. If the cut-out operates, unplug the heater and allow it to cool.
This issue can occur if the machine is running and the power is cut e.g. plug pulled out, power cut etc.
To reset the machine, turn the power off (using either the power button on the remote or the Main body), wait 60 seconds and then turn back on.

Plug the machine back in and retest.
Change target temperature
The machine will do this if the previously entered temperature is below the current room temperature and above 32F.
Please change the target temperature to 32F and retry the machine.
Use the buttons on the machine, not the remote control. To use as a heater please select a temperature above the current room temperature.

If only the remote isn't working, please select the 'Remote control not working' from the drop down list.
Has changing the temperature setting resolved the problem?
Check remote is being used correctly
Please ensure that the remote is facing the correct way and has a clear line of sight to the base of the machine.

Replacing the remote control battery
Unscrew the remote control battery lid.
Test remote
Squeeze on the remote control below the buttons and operate one of the functions.

Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
Camera test
The remote LED is invisible to the human eye, only a digital camera can show this is working.
Using a digital phone or camera, aim the LED at the lens and see if a red light shines through it.
NB: This check will not work for iPhone 5s or 6.

Move obstructions
Please retry the remote with the machine again, ensuring no obstructions.

Replace the batteries
Please replace the battery in the remote and call back if the problem persists.

Please select the appropriate option
Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
Replace the batteries
Replace the battery in the remote control and call back if the problem persists.
Replace the battery with type CR 20
Please select the appropriate option
Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
Please select the appropriate option
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Wipe the machine
The following areas should be checked and cleaned to maintain the machine's performance.
Loop amplifier - clean with a dry or damp cloth.
Main body - clean with a dry cloth
Shroud - clean with a dry cloth or soft brush
WARNING: Do not use polish or detergent on any part of the machine.

Machine is working normally
This is completely normal.
The machine will run very slowly when in idle mode to keep air flowing over the thermostat so it can constantly regulate the temperature of the air.
This is a characteristic of the product and cannot be resolved with an exchange or return to base repair.
There is no safety concern.
If the noise is intrusive, switching the machine off at the wall will stop the noise, or altering the position of the product in the room might make the noise less audible.
Is there anything else we can help you with?
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
Test the airflow button on the remote
Ensure correct button on remote is being pressed to adjust the airflow.

Test the other buttons on the remote
1) On/Off 2) Cooling mode 3) Airflow speed 4) Heating control 5) Sleep timer 6) Oscillation 7) Focused mode 8) Diffused mode

Change the remote battery
Loosen the base and pull it away from the remote.

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

Paper test
The fan has a strong, smooth airflow when switched on. The airflow should be strong enough to lift a sheet of newspaper past 45 degrees.

Hold a newspaper approximately 2 meters (6' 6'') away from the product with the airflow control dial turned to maximum.
Does the newspaper lift beyond 45 degrees?
The following areas should be checked and cleaned to maintain the machine's performance.
Loop amplifier - clean with a dry or damp cloth.
Main body - clean with a dry cloth
Shroud - clean with a dry cloth or soft brush
WARNING: Do not use polish or detergent on any part of the machine.

Turn the machine off
Please turn the machine off and back on again.

We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Enable Cooling mode
Unlike the AM04/AM05 the AM09 does not need to be set to 0°C to enable cooling mode.
Turn the machine on.

To turn the heater off and use cool air mode press the BLUE Thermostat Control button. The power button light on the Main body will change from red to blue.
Change the airflow speed using the Airflow Speed Control.
NB: The fan speed setting is between 1-10.
Target temperature explanation
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.

Check the other functions on the remote
ON/OFF.

Cool air mode

Airflow speed control

Temperature control

Sleep timer function

Oscillation On/Off.

Personal heating mode

Diffused heating mode

We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Replace batteries
Unscrew the remote control's battery compartment.

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

Replacement remote required
This issue could be resolved by ordering a replacement remote control.
Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
We need a little more information to help us solve your issue.
Please contact our customer service team via live chat.
Please select the appropriate option
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Wipe the machine
The following areas should be checked and cleaned to maintain the machine's performance.
Loop amplifier - clean with a dry or damp cloth.
Main body - clean with a dry cloth
Shroud - clean with a dry cloth or soft brush

Hard reset
Unplug the machine and leave it for 10 seconds.

Plug the machine back in and retest.
Reset machine
The display will show a fault code and the LED around the power button will flash red.
The oscillation, airflow and timer controls will be locked out on the remote.
The power button on both the remote and Main body will still work.

To reset the appliance, turn the power off (using either the power button on the remote or the main body) wait 60 seconds and then turn the machine back on.
The fault code should have cleared.
If the power cycle does not work try a 'hard reset'.
Turn the power off and unplug the machine, or switch off at the mains socket, for 30 seconds and then turn back on.
The fault code should have cleared.
Reset machine
The display will show a fault code and the LED around the power button will flash red.
The oscillation, airflow and timer controls will be locked out on the remote.
The power button on both the remote and main body will still work.

To reset the appliance, turn the power off (using either the power button on the remote or the main body) wait 60 seconds and then turn the machine back on.
The fault code should have cleared.
If the power cycle does not work try a 'hard reset'.
Turn the power off and unplug the machine, or switch off at the mains socket, for 30 seconds and then turn back on.
The fault code should have cleared.
Hard reset
Unplug the machine and leave it for 10 seconds.

Plug the machine back in and retest.
Power cycle
Before following the steps, press the power button with a firm touch for 1 second.

Hard reset
If the power cycle does not work try a 'hard reset'.
Turn the power OFF and unplug the machine, or switch off at the mains socket, for 30 seconds and then turn back ON.

Plug the machine back in and retest.
Please select the appropriate option
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Please call us to resolve this problem.
It looks like the Remote control isn't working. We know how to fix it – we just can’t do it online.
One of our Dyson experts can help you get the parts or assistance you need.
Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82

Remote control
Part no. 966538-04
Stores magnetically on top of your machine.
€33.82
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our team via live chat.
Further help
Dyson Hot+Cool™ fan heater (Black/Nickel)