If your extractor fan won’t spin, makes weird noises, or just seems lazy, you’re not alone. Fans are tiny machines that get greasy, wired, and worn out faster than you think. The good news? Most problems can be spotted and solved without ripping out the whole unit.
First, check the obvious: is the fan getting power? A tripped breaker or a loose plug can kill the motor in seconds. If the lights on the fan work but the blades stay still, the motor is probably the culprit. Over time, grease from cooking or steam from showers builds up on the blades and motor housing. This layer creates friction, making the motor work harder and eventually overheat.
Another common fault is a clogged vent. The duct that carries air to the outside can get stuffed with dust, lint, or even bird nests. When the vent is blocked, the fan works against high resistance and may shut down to protect itself. Finally, worn bearings or a broken fan belt (on older models) will make the fan wobble or stop turning altogether.
Before you climb a ladder or open the housing, turn off the electricity at the breaker. Safety first – a short‑circuit can damage the fan and your wiring. Once it’s safe, remove the cover. Most modern fans snap off; older ones may have a few screws.
Give the blades a good clean. Soak a cloth in warm, soapy water, wring it out, and wipe each blade. For stubborn grease, a little kitchen degreaser works wonders. Rinse with a damp cloth and dry thoroughly. While the cover is off, inspect the motor for dust buildup. A can of compressed air can blow loose particles out of the vents and around the motor.
If the motor hums but doesn’t spin, it’s likely stuck. Gently tap the motor housing with a rubber mallet – this can free a seized shaft. If that doesn’t work, the motor may need replacement. Most fans use a standard 120‑volt motor that a qualified electrician can swap in about an hour.
Check the duct. Detach the vent pipe (you’ll need a screwdriver for the clamp) and look for blockages. A garden hose can push out dust and debris. Re‑attach the pipe securely, making sure there’s no gap where air can leak.
When you’ve cleaned everything, re‑assemble the fan and turn the power back on. If the fan still won’t run, it’s time to call a professional. Trying to fix a motor without proper knowledge can be dangerous and may void any warranty.
One last tip: regular maintenance saves money. Wipe the blades every few months, especially after heavy cooking or shower use. A quick check of the vent once a year prevents nasty blockages. With these habits, most extractor fans last 8‑10 years before you need a major repair.
So next time your fan goes quiet, remember the checklist: power, cleaning, vent, motor. A few minutes of DIY can bring fresh air back to your kitchen or bathroom without a costly callout.
Figuring out why your extractor fan suddenly quit can be frustrating. Is it an electrical issue, or maybe a build-up of grime? This article dives into common reasons for extractor fan failures, practical tips on troubleshooting, and when you might need professional help.
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