When your grease buildup fan, a kitchen or bathroom extractor fan clogged with sticky residue from cooking vapors. Also known as grease-clogged vent fan, it’s one of the most common reasons extractor fans stop pulling air—and why you start smelling last night’s fried food three days later. This isn’t just a nuisance. Grease buildup doesn’t just make your fan work harder. It strains the motor, blocks airflow, and over time, can overheat and cause a fire. Many people ignore it until the fan stops entirely, then panics when they realize the smell won’t go away.
Grease doesn’t just collect on the fan blades. It coats the ductwork, the filter, the housing, and even the motor bearings. You’ll notice it when the fan gets louder—not just buzzing, but grinding or rattling. Or when the air feels thick, like you’re breathing in oil. If you’ve ever opened your extractor fan cover and seen a greasy, yellow-brown crust, you’re not alone. It’s the same problem in 8 out of 10 homes with gas stoves or frequent frying. And yes, it happens faster if you cook with oil, fry chicken, or use your range hood without cleaning it for months.
Fixing this isn’t about replacing the whole unit. It’s about cleaning the right parts, at the right time. A simple wipe-down every month stops most buildup. But if it’s already thick, you need to take the fan apart, soak the parts in hot soapy water, and scrub with a non-abrasive brush. Don’t use bleach—it eats metal. Don’t just spray cleaner and walk away. Grease needs heat and time to break down. And if the motor’s already noisy or the fan won’t spin freely, the bearings might be ruined. That’s when you need to call in a pro. An extractor fan repair, a service that diagnoses and fixes ventilation system failures isn’t just about fixing airflow. It’s about safety.
Some people think a new fan is cheaper than cleaning. But a new extractor fan costs £100–£250, plus installation. Cleaning? Under £20 in supplies and an hour of your time. If you’ve got a 5-year-old fan that’s still quiet and efficient, cleaning it is smarter than replacing it. But if the motor’s dead or the housing is cracked, replacement makes sense. That’s where the real decision lies—not between cleaning and replacing, but between ignoring and acting.
You’ll find guides here on how to take apart your fan, what tools actually work, which cleaners to avoid, and when to call a technician instead of risking a fire. We’ve got posts that show you how to test if your fan’s still pulling enough air, how to clean ducts without climbing on the roof, and why some filters are useless. You’ll also learn which brands hold up longest against grease, and how to pick a fan that’s easier to clean from day one. This isn’t theory. These are fixes real people in Nuneaton used to get their kitchens back under control.
Kitchen extractor fans stop working due to grease buildup, motor failure, wiring issues, or blocked ducts. Learn the most common causes and how to fix them yourself with simple tools and steps.