Extractor Fans: Repair, Alternatives, and What the Law Says

If you’ve ever baked a casserole and felt the kitchen turn into a sauna, you know why an extractor fan matters. It pulls steam, smoke, and odors out, keeping the space fresh. But fans can lose suction, get noisy, or stop working altogether. Below you’ll find the most common issues, easy fixes you can try yourself, and the rules you need to follow in the UK.

Common Issues & Fast Fixes

First thing to check is the filter. Grease and dust build up quickly, choking the airflow. Pop off the filter, give it a good soak in hot, soapy water, rinse, and let it dry before putting it back. If the fan still seems weak, look at the ductwork. A kinked or blocked duct can halve the suction. Disconnect the duct, clear any debris, and make sure it runs straight to the outside.

Next, listen for unusual sounds. A rattling motor often means the fan blades have hit something or the motor bearings are worn. Tightening the mounting screws can stop the rattling; if the motor hums but doesn’t spin, it’s probably burnt out and needs replacement. Replacing a motor isn’t rocket science – you’ll need a screwdriver, the new motor model (check the make on the old unit), and a few minutes of time. Just remember to turn off the electricity at the breaker before you start.

Sometimes the problem is the vent flap outside the house. Weather can jam it shut, especially after a storm. Open the flap by hand or clean away any leaves that might be blocking it. A free‑moving flap restores airflow instantly.

If you’ve gone through these steps and the fan still underperforms, it may be time to call a professional. A qualified technician can test the motor’s voltage, inspect hidden wiring, and ensure the fan meets safety standards.

Alternatives & Legal Basics

When a fan is down and you need a quick fix, don’t panic. Open a window or use a portable dehumidifier to get rid of excess moisture. A small table fan placed near the cooking area can also push steam toward an open door. These are short‑term solutions, but they keep the kitchen livable while you arrange a repair.

UK building regulations require proper kitchen ventilation in most homes, especially if you have a gas hob. The law doesn’t force you to have a specific brand of extractor, but the fan must remove at least 15 L/s of air for a standard kitchen. If you’re installing a new fan, make sure it meets the “BS EN 12464‑1” lighting and ventilation standard – most reputable brands do.

When you hire a repair service, ask if they are registered with a recognized trade body (like CHAS or NICEIC). This adds a layer of trust and often means the work complies with the latest safety codes. A professional will also give you advice on when a fan is beyond repair and should be replaced entirely.

To sum up, keep the filter clean, check the duct and vent flap, tighten any loose parts, and test the motor. Use a window or portable fan for a temporary fix, and remember the legal requirement of adequate airflow. If anything feels beyond your skill level, a qualified local expert will get the job done safely and quickly.