How to Clean a Bathroom Extractor Fan

Why Do You Need to Clean Your Bathroom Extractor Fan?

Condensation forms when warm, damp air comes into contact with colder surfaces such as windows, mirrors, tiled walls and shower screens.

A working extractor fan helps remove this moisture from the bathroom. It also draws out airborne particles such as dust and cotton fibres.

Not all debris is removed through the fan. Some can remain around the motor, blades and housing. Over time, this build-up can affect performance, making regular cleaning and maintenance important.

How to Clean a Bathroom Extractor Fan

Step 1: Turn Off the Power

Safety first. Turn off the power and remove the fuse from the fuse board or isolate the circuit breaker.

If your extractor fan has a switch behind the cover, make sure it is switched off before cleaning.

Step 2: Protect the Area

Place old sheets or newspapers underneath the fan to catch dust, dirt and debris as you clean.

Step 3: Remove the Fan Cover

Most extractor fan covers are held in place with screws or spring clips.

Remove the screws or pinch the spring clips together to release the cover. If there are no visible screws, check around the cover for spring clips before trying to remove it.

Step 4: Clean the Fan

Once the cover is removed, vacuum away loose dust and debris.

Use an old toothbrush or small brush to loosen stubborn dirt. Then wipe the inside of the housing with a damp, soapy cloth.

Keep water away from the motor, wiring and electrical contacts. Do not pour water over the fan.

Step 5: Clean the Fan Housing

Clean the fan housing and cowling with a brush and damp microfibre cloth.

If cleaning products are needed, wear suitable protective clothing and gloves. Keep water away from the fan motor.

Step 6: Clean the Fan Blades

If the blade unit can be removed easily, clean it with warm soapy water and scrub away any built-up grime.

If removal is more complicated, clean the blades in place using a microfibre cloth or suitable sponge.

Step 7: Allow the Fan to Dry

Make sure the cover, housing and blades are completely dry before restoring the power.

A dry cloth can help remove remaining moisture. If using a hair dryer, keep it away from standing water and take the necessary safety precautions.

Step 8: Reassemble the Fan

Once everything is completely dry, put the fan back together.

Make sure all components are securely in place before restoring the power.

Step 9: Test the Extractor Fan

Restore the power and switch the fan on.

Check that it runs smoothly and that the blades are not catching on the casing.

You can also place a small piece of toilet tissue over the extractor grille. The suction should hold it against the grille if the fan is working correctly.

Cleaning your bathroom extractor fan takes approximately 10 minutes of preparation and 15 minutes of cleaning.

Need Help With Extractor Fan Cleaning or Replacement?

Bathroom and kitchen extractor fans help remove moisture from the room, but they need periodic cleaning and maintenance.

If you're comfortable with DIY, cleaning an extractor fan is fairly straightforward. If the fan is heavily soiled or is no longer working properly, it may need professional attention.

A Serviceteam engineer can assess the fan and advise whether it's more practical to keep cleaning it yourself or move to replacement.

If your extractor fan needs replacing rather than cleaning, our appliance installation in London service can help with the installation. Booking is available 24/7, or contact the team for advice on the most suitable solution.