Extractor Fan Repair: Quick Tips, Costs & DIY Guide

If your kitchen or bathroom fan is humming, rattling, or just won’t turn on, you’re not alone. A stuck extractor fan can turn a fresh space into a stinky one fast. The good news? Most problems are easy to spot and fix without calling a technician.

Common Problems with Extractor Fans

First, figure out what’s wrong. The usual culprits are:

• Clogged filters or ducts. Grease and dust build up and choke the motor.
• Loose wiring. A worn plug or loose connection can stop power from reaching the fan.
• Motor wear. Over time the motor bearings can seize, causing a humming noise.
• Fan blade blockage. Food particles, hair, or even a stray screw can jam the blades.

Turn off the power at the switch or fuse box before you start anything. Safety first.

DIY Repair: Step‑by‑Step

1. Clean the filter. Remove the filter cover (usually a twist‑off). Soak the filter in hot, soapy water for 15 minutes, then rinse and let it dry completely.

2. Clear the duct. Detach the duct from the fan housing. Use a long brush or a vacuum hose to pull out dust and debris. A flexible cleaning brush works wonders.

3. Check the wiring. Open the fan’s outer casing (most have a few screws). Look for any frayed wires or loose terminals. Tighten any loose nuts and replace burnt wires with the same gauge copper.

4. Test the motor. With the cover off, briefly turn the fan on (you may need a friend to flip the wall switch). If it still hums but doesn’t spin, the motor bearings are likely bad. In that case, swapping the motor is cheaper than a full unit replacement.

5. Re‑assemble and run a final test. Put everything back, secure the screws, restore power, and listen. The fan should run smoothly and pull air without noise.

If any step feels beyond your comfort zone, it’s smart to call a professional. A qualified technician can replace the motor, check the electrical circuit, and ensure the fan meets safety standards.

Typical costs vary: a simple filter clean is free, a motor swap runs £80‑£150, and a full fan replacement can be £150‑£300 including labour. Ask for a written quote before work begins.

Keeping your extractor fan clean once a month prevents most issues. A quick wipe of the exterior and a brief filter rinse keep the airflow strong and the motor happy.

So, next time you hear that annoying whirr, grab a screwdriver and give these steps a try. You’ll save money, avoid a smelly kitchen, and maybe even discover a new hobby. If it still won’t work, know exactly what to tell a pro – that’ll speed up the fix and keep the price fair.