Dyson

Dyson Purifier Cool Gen1

Answers and step-by-step fixes from the official Dyson manual.

What does the LCD screen show?

• Filter life remaining: Shows how much filter life is left. The screen shows the remaining filter life and tells you when your filters need replacing.
• PM10 symbol: Larger particles detected. This appears when larger microscopic particles up to 10 microns are affecting air quality.
• PM2.5 symbol: Fine particles detected. This appears when microscopic particles up to 2.5 microns are affecting air quality.
• Pollutant symbol: A pollutant is lowering air quality. When a type of pollutant causes air quality to drop, a symbol for it shows on the screen.
• Continuous monitoring indicator: Shows whether continuous monitoring is on. The screen shows whether continuous monitoring is turned on or off.
• Error code: The machine has a fault. An error code on the screen means the machine has detected a fault.

Common problems

The screen is showing an error code

1. Turn the machine off and then on again This clears most error codes.
2. Does the error code come back? If turning it off and on again does not clear the code, get in touch with Dyson.

The filter life is low or has run out

1. Check the filter life on the screen The screen shows the remaining filter life and tells you when it needs replacing.
2. Replace the HEPA+Carbon filter Fit a new filter once the screen shows it is needed.
3. Reset the filter life after fitting the new filter This tells the machine the filter has been changed.

The machine seems dusty or not performing well

1. Is the machine dusty? Wipe it with a damp lint-free cloth.
2. Check the air inlet holes on the filter for blockages Look for anything blocking the air inlet holes.
3. Check the small aperture inside the loop amplifier Look for blockages in this opening too.

Step-by-step guides

Change the HEPA+Carbon filter

1. Switch off and unplug the machine
2. Push down on the buttons on either side to release the outer cover
3. Push down on the tabs to remove the old filter
4. Push the new filter into the outer cover until the tabs click into place
5. Put the outer covers back on and push until they click into place
6. Plug in, switch on, and reset the filter life

Reset the filter life

1. Press and hold the Night mode button on the remote
2. Hold for 5 seconds until the display counts down
3. Wait for the display to count down from five

Clean the machine

1. Wipe the machine with a damp lint-free cloth if it is dusty
2. Check the air inlet holes on the filter for blockages
3. Check the small aperture inside the loop amplifier for blockages
4. Use a soft brush to remove dust and debris