Kitchen Extractor Fan: What It Does and How to Keep It Working

Ever notice a greasy smell lingering after cooking? That's your extractor fan trying to do its job. It pulls steam, smoke and odors out of the kitchen, keeping the air fresh and your cabinets dry. When it works, you barely think about it. When it doesn’t, the whole house can feel stuffy.

Most UK homes use a simple ducted fan mounted above the hob. It runs on a switch, a timer, or a humidity sensor. The key parts are the motor, the fan blades, the filter (usually a mesh or charcoal unit), and the duct that carries air outside. Knowing these parts helps you spot trouble fast.

Common Problems and Quick Fixes

Here are the three issues you’ll see most often and what you can do yourself.

1. Fan is noisy or rattles. A loose blade or a build‑up of grease on the motor can cause vibration. Turn off the fan, remove the cover and give the blades a gentle wipe with a damp cloth. Tighten any loose screws you find. If the noise persists, the motor bearings might be worn – that usually means a pro repair.

2. Air flow is weak. Over time the filter gets clogged with grease and dust. Pull out the filter, soak it in hot, soapy water for 10‑15 minutes, scrub with a soft brush, rinse and let it dry. If you have a charcoal filter, replace it every 6‑12 months. Also check the external duct for blockages; a quick vacuum or a flexible brush can clear debris.

3. Fan won’t start. First, make sure the circuit breaker isn’t tripped. Then test the switch – if it feels loose, it might be faulty. You can also give the fan a gentle tap on the motor housing; sometimes a stuck motor just needs a little nudge. If these steps don’t help, the motor likely needs replacement.

When to Call a Professional and How to Choose One

If you’ve tried the quick fixes and the fan still sputters, it’s time to call an expert. A qualified electrician or a specialist kitchen ventilation company can safely test the wiring, replace a motor, or install a new duct if required. Trying to fix electrical parts on your own can be dangerous, especially with a fan that’s tied into your home’s circuit.

When picking a pro, look for a Gas Safe‑registered electrician or a company that lists “extractor fan repair” as a service. Ask for a clear quote before any work starts – most jobs cost between £80 and £150 for a basic motor swap, but complex duct work can run higher. Check online reviews for reliability and ask friends if they’ve had good experiences.

Regular maintenance can save you money in the long run. Set a reminder to clean the filter every 3 months and inspect the fan cover for grease build‑up. A quick visual check each season will catch problems before they become costly repairs.

Bottom line: a well‑kept extractor fan keeps your kitchen smelling fresh, protects your cabinets from moisture, and saves you from pricey repairs. Keep the filter clean, tighten loose parts, and don’t hesitate to call a qualified pro when the motor gives up. With these simple steps, your fan will stay quiet, strong, and ready for every cooking session.