If your kitchen or bathroom fan stutters, makes a humming noise, or simply won’t spin, the motor is probably the culprit. Swapping out the motor is easier than most people think, and you can save a good chunk of money by doing it yourself. Below is a no‑nonsense walk‑through that takes you from spotting the problem to having a brand‑new motor humming away.
First, make sure the motor really needs replacing. Common signs include:
If you’ve checked the power switch, reset button, and the fan’s filter, and the problem persists, it’s time for a new motor.
1. Gather tools and parts. You’ll need a screwdriver set (usually Phillips), a pair of pliers, a voltage tester, and the exact replacement motor model. Most fans list the motor type on a label inside the housing.
2. Turn off the power. Flip the circuit breaker for the fan’s circuit. Even if the fan is on a wall switch, double‑check with a voltage tester to be safe.
3. Remove the fan cover. Unscrew the outer grille or housing. This typically takes two or three screws. Keep them in a small bowl so they don’t get lost.
4. Disconnect the old motor. You’ll see a wiring harness plugged into the motor terminals. Gently pull the connector off. If it’s held with a clip, release the clip first.
5. Take out the motor. Most motors are bolted to a bracket. Unscrew the mounting bolts and lift the motor out. Note how the fan blades are attached – a simple clip or a set screw.
6. Install the new motor. Position the new motor in the same orientation as the old one, bolt it to the bracket, and reconnect the wiring harness. Make sure the connection is snug.
7. Re‑attach the fan blades. Clip or screw the blades back onto the motor shaft. Ensure they are secure and spin freely.
8. Put the cover back on. Slip the grille back into place and screw it tight.
9. Restore power and test. Turn the breaker back on and run the fan. You should hear smooth operation and feel strong airflow.
If the fan still doesn’t work, double‑check the wiring connections and make sure the switch isn’t faulty. At that point, calling a professional is wise.
Replacing an extractor fan motor usually costs between £30 and £80 for the part, plus a few pounds for any small screws or connectors you might need. If you hire a technician, expect a labor charge of £50‑£100, depending on your area.
To keep the motor lasting longer, clean the fan filter every month, wipe down the housing to prevent dust buildup, and run the fan for a few minutes after cooking or showering. Regular care reduces strain on the motor and delays future replacements.
So, next time your fan sputters, you now have a clear plan: diagnose, gather tools, swap the motor, and enjoy fresh air again. It’s a quick job that most homeowners can handle, and it saves both time and money.
Learn how to replace the motor in an extractor fan with real-world tips, clear steps, and what it actually takes to get your fan running like new again.
Continue reading...