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How To Fix An Extractor Fan? - Complete Guide

The Total Step-By-Step Guide By TNS Electrical Solutions: Electrician London

Electrician fixing a fuse
Let's fix that extractor fan!

Dealing with a malfunctioning extractor fan can be a hassle, impacting not only the air quality but also the overall comfort of your environment. Whether in your home or a commercial space, understanding how to troubleshoot and fix your extractor fan is essential. For issues beyond simple fixes, calling an electrician in London like Fulham's TNS Electrical Solutions may be necessary. This guide will provide a detailed, step-by-step approach to diagnosing and resolving common extractor fan issues.


1. Safety First


The initial step in any repair is to ensure your safety. Disconnect power to the unit at the fuse box to prevent any risk of electric shock. Confirm the power is off by using a non-contact voltage tester near the fan’s wiring.


2. Troubleshooting Basics


Begin by diagnosing the problem:


  • Power Issues: Check if the fan is receiving power. This can involve checking the circuit breaker and ensuring the switch and timer are functional.

  • Noise Issues: Listen for noises that could indicate loose parts or obstructions.

  • Performance Issues: If the fan is running but not effectively removing air, the issue may be with airflow or blockage.

3. Cleaning and Maintenance


Over time, dust and grime can accumulate:


  • Cleaning Blades and Housing: Remove the cover and use a brush attachment on a vacuum to clean the blades and housing. Wipe down with a damp cloth if necessary.

  • Checking for Rust or Wear: Inspect for any signs of rust or wear that could hinder the fan’s operation.

4. Inspecting and Replacing the Motor

If the fan is not operating at all, the motor may be burnt out:

  • Testing the Motor: Disconnect the motor and test it with a multimeter for continuity.

  • Replacing the Motor: If the motor has failed, replace it with a compatible unit, ensuring it matches the voltage and power specifications of your fan.

5. Ductwork and Vent Check

Electrician working
Inspect, clean and dust first!

Blocked or damaged ducts can severely impact the fan’s efficiency:

  • Inspecting the Ducts: Look for any blockages, such as nests or built-up debris.

  • Cleaning the Ducts: Clear any obstructions and consider professional cleaning for severe blockages.

6. Electrical Connections and Wiring

Faulty wiring can prevent the fan from functioning:

  • Checking Connections: Ensure all electrical connections are secure and not corroded.

  • Rewiring: If wires are frayed or damaged, they may need to be replaced. This is a task where consulting an electrician in London is advisable.

7. Switches and Controls

A malfunctioning switch or timer can also be the culprit:

  • Testing the Switch: Use a multimeter to check the switch for continuity.

  • Replacing the Switch: If defective, replace the switch with a new one that matches the specifications of your fan.

8. Upgrading Your Fan

If your fan is outdated or continually problematic:

  • Considering an Upgrade: Evaluate newer models for better efficiency and features like humidity sensors or quieter operation.

Case Studies from Fulham, London Clients

  • Fulham Homeowner: A client in Fulham on Munster Rd, London SW6 6AW contacted our electrician in London after their bathroom extractor fan began making loud grinding noises. The issue was traced to a rusted motor, which was promptly replaced, restoring the fan's functionality and quiet operation.

London Google Maps of Fulham
Munster Rd, Fulham

  • Fulham Restaurant: A popular eatery in Fulham on North End Rd, London SW6 1NB faced recurring issues with their kitchen extractor fan. It was discovered that grease buildup had clogged the ducts. After a thorough cleaning and the installation of easy-access panels for regular maintenance, the problem was resolved.

Google Maps Fulham
North End Rd, Fulham

Need Further Assistance? Reach Out to Our Expert London Electrician


Extractor fan in London
Extractor fan broke? Contact us today for help

While many issues with extractor fans can be resolved through thorough cleaning and basic part replacements, some problems may require professional attention. If after following this guide, your extractor fan still exhibits issues, or if you're unsure about performing any of the steps, it’s prudent to contact a qualified electrician in London. We are here to help with free advice or to provide a service call to ensure your extractor fan works efficiently and safely. Don't hesitate to reach out for assistance to maintain the comfort and safety of your space.

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