Extractor Fan Replacement: Simple DIY Steps & Pro Help

If your kitchen smells like yesterday’s dinner, it’s probably time to replace the extractor fan. A good fan pulls steam, smoke, and odors out of the room, keeping things fresh and safe. The good news? Swapping it out is a job most homeowners can do in an afternoon with just a few tools.

What You’ll Need Before You Start

Gather these basics so the job runs smoothly:

  • New extractor fan that matches your cabinet size and vent type.
  • Phillips screwdriver, flat‑head screwdriver, and a drill.
  • Adjustable wrench or pliers.
  • Electrical tape and wire nuts.
  • Safety glasses and a dust mask.

Turn off the power at the breaker before you touch any wires – safety first.

Step‑by‑Step Replacement Process

1. Remove the old fan. Unscrew the front grill, then detach the fan housing from the cabinet. Most units are held by a couple of screws and a simple mounting bracket.

2. Disconnect the wiring. You’ll see a short cord with three wires – live, neutral, and earth. Loosen the wire nuts, separate the wires, and cap them with electrical tape.

3. Take out the old motor. Lift the motor assembly out of the vent pipe. If the pipe is glued, gently twist to loosen it. Keep the old fan nearby so you can compare sizes.

4. Prepare the new fan. Match the new fan’s mounting holes with the cabinet. Some models come with a universal bracket; attach it if needed.

5. Connect the new wiring. Match the live (brown), neutral (blue), and earth (green/yellow) wires and secure them with fresh wire nuts. Double‑check that the connections are tight.

6. Install the fan. Slide the new motor into the vent pipe, align the mounting bracket, and screw everything back into place. Make sure the fan sits flush against the cabinet to avoid rattles.

7. Test it. Turn the breaker back on and switch the fan on. You should hear a steady hum and feel airflow through the vent. If it’s quiet or doesn’t spin, double‑check the wiring and the motor’s orientation.

Cleaning the fan’s blades and the vent pipe every few months will keep it running efficiently.

If at any point the wiring looks damaged, the vent pipe is corroded, or the fan doesn’t match the old size, it’s wise to call an appliance repair professional. A qualified technician can handle complex wiring, ensure the fan meets local building codes, and avoid costly mistakes.

Replacing an extractor fan isn’t rocket science, but it does need a bit of patience and attention to detail. With the right tools and this guide, you can get your kitchen breathing again without waiting for a service call.

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