Extractor Fan Repair: Simple Steps to Fix or Replace Your Fan

If your bathroom or kitchen fan is whirring loudly, sputtering, or simply not turning on, you’re probably wondering how to get it working again without blowing your budget. The good news is many fan problems are easy to troubleshoot, and even a complete replacement can be a weekend DIY project if you have the right tools.

Common Reasons an Extractor Fan Stops Working

First, figure out what’s actually wrong. The most frequent culprits are:

• Power issues: A tripped circuit breaker or a loose wiring connection can kill the fan in seconds.
• Clogged vent: Grease, dust, and lint build up inside the duct, restricting airflow and causing the motor to overheat.
• Motor wear: Over time the bearings or the motor windings can fail, leading to a humming sound or no spin at all.
• Faulty switch or timer: A broken wall switch or built‑in timer may stop sending power to the fan.

Pinpointing the cause saves you from swapping out parts you don’t need.

DIY Fixes You Can Try Right Now

Check the power. Turn off the breaker, remove the fan cover, and use a voltage tester on the wiring terminals. If there’s no voltage, reset the breaker or replace the switch before moving on.

Clean the vent. Unscrew the fan housing, pull out the duct, and brush out any grime with a flexible cleaning brush. A vacuum can also pull out dust from the motor housing.

Lubricate the motor. If the fan spins slowly, a few drops of lightweight oil on the motor shaft (if accessible) can revive it. Avoid heavy grease; it can attract more dirt.

Replace the capacitor. Many fans use a small capacitor to start the motor. A bulging or leaking capacitor will cause the fan to stall. These are cheap and easy to swap – just note the micro‑farad rating before buying a new one.

When to Replace the Entire Fan

If you’ve tried the fixes above and the fan still won’t run, it’s probably time for a new unit. Replacing an extractor fan isn’t as hard as it sounds:

1. Turn off power at the breaker.
2. Detach the old fan from the duct and the mounting brackets.
3. Connect the new fan’s wires to the existing wiring (match live, neutral, and earth).
4. Secure the fan in place and re‑attach the duct.
5. Turn the power back on and test.

Most standard fans cost between £30‑£80, and you’ll need a screwdriver, a drill, and possibly a wire stripper. If you’re uncomfortable working with electricity, call a qualified electrician – it’s a small price for safety.

Regular maintenance keeps fans humming smoothly. Wipe the exterior monthly, vacuum the vent yearly, and listen for any new noises. A quick check each season can catch problems before they turn into costly replacements.

Whether you’re fixing a stubborn bathroom fan or swapping out a kitchen vent, the steps above give you a clear roadmap. Have a specific fan model in mind? Our technicians at Weymouth Appliance Repair Services can help you pick the right replacement or handle the installation for a modest fee. Feel free to reach out for a quick quote – we’re just a call away.