Cooker Hood Not Working in Midhurst - Common Faults Causes and What to Do Next

Published August 2026 | Cooker Hood Repair

A homeowner in Midhurst switched on her Bosch canopy hood one Tuesday evening and got nothing - no fan, no light, no response from the controls at all. She'd had the hood for around seven years and it had always ticked along quietly without any trouble. She assumed it was something major and had already started browsing replacement units online before calling us. When our engineer arrived the following morning, the diagnosis told a different story - one that's actually extremely common in kitchens across Midhurst and the wider West Sussex area, and one that's worth understanding before you reach for your credit card.

What Was Actually Going On

Cooker hood faults tend to fall into a handful of predictable categories, and the most deceptive one is also the most common: a complete shutdown caused by a blocked grease filter triggering the motor's thermal protection.

Here's what happens. The motor inside a cooker hood generates heat as it runs. Manufacturers build in a thermal cutout - a safety switch that trips automatically if the motor gets too hot. Under normal conditions, this never activates because air flows freely through the unit, keeping the motor cool. But when grease filters become heavily clogged, airflow is restricted. The motor has to work much harder to pull air through, it runs hotter than it should, and eventually the thermal cutout trips. The hood goes completely dead. No fan, no light, no controls. It looks like a catastrophic electrical failure. It often isn't.

In this particular Midhurst property, the grease filters hadn't been cleaned in well over a year. They were saturated - dark grey rather than the original silver mesh - and almost completely blocked. The motor had been struggling for months before it finally overheated and tripped. Once our engineer cleaned the filters, allowed the motor to cool for twenty minutes, and reset the thermal cutout, the hood came back to life immediately.

That's the good news. The less good news is that running a hood in that condition for an extended period puts real stress on the motor. In some cases the motor itself sustains damage and needs replacing even after the root cause is fixed. This homeowner got lucky - the motor was fine. But it's a reminder that what looks like a sudden fault usually has a history behind it.

Beyond the thermal cutout issue, our engineers across Midhurst and the surrounding villages regularly encounter five other faults that account for the vast majority of cooker hood callouts.

Weak or no extraction. If the fan runs but barely moves any air, the culprit is almost always the grease filter, the carbon filter (on recirculation models), or both. Carbon filters on recirculation hoods - the type that don't vent outside but clean the air and push it back into the kitchen - have a finite lifespan. Most manufacturers recommend replacing them every three to six months depending on usage. After that, they're essentially useless. A carbon filter that's past its life not only restricts airflow but stops filtering cooking smells entirely. Brands like Hotpoint, Neff, and Beko all use brand-specific carbon filters, so it's worth having the model number to hand when ordering replacements.

Motor running but no extraction - the wrong speed setting. This one catches people out more than you'd think. Many modern hoods, including popular models from AEG and Elica, default to their lowest speed after a power interruption. If your hood sounds like it's running but isn't doing much, check that you're not stuck on speed one when you need speed three.

Lights not working. LED cooker hood lights fail more often than the extraction mechanism itself. On older hoods with halogen bulbs, the fix is usually a direct replacement. LED modules on newer units are trickier - some are integrated into the hood's circuit board rather than being separate, replaceable units. A failed LED module on a Siemens or Samsung hood can cost between 40 and 80 pounds for the part alone.

Controls not responding. Touch controls, which have become standard on mid-range and premium hoods, use a capacitive panel that can fail independently of the extraction motor. A cracked or moisture-damaged touch panel often means the hood runs but can't be controlled, or responds intermittently. On some Franke and Elica models, the touch panel can be replaced as a standalone component. On others, it's integrated into the main PCB, which makes the repair significantly more expensive.

Excessive noise. A hood that's suddenly much louder than it used to be is usually dealing with one of three things: a loose fan blade, worn motor bearings, or an object that's found its way into the extraction path. Grease buildup on fan blades can also cause them to become unbalanced, creating a rattling or vibrating noise that gets progressively worse. This is almost always fixable without replacing the whole unit.

How the Problem Was Resolved

For our Midhurst customer with the Bosch hood, the resolution came in stages. The engineer started by removing and cleaning both grease filters using a degreaser solution and hot water - a process that took around fifteen minutes. The filters came up clean enough to reuse, though they were near the end of their practical lifespan and replacement was recommended within the next few months.

With the filters cleaned and the thermal cutout reset, the hood was tested. It ran, but a check of the motor revealed it was drawing slightly more current than it should - a sign of some wear from the sustained overheating. The engineer ran the Voltrade GoFIX diagnostic check, which flagged the motor as borderline and noted that while it was functional, it would be worth monitoring. The customer was given the option to replace the motor preventatively (at an additional cost) or wait and see. She chose to wait, which is a perfectly reasonable call given the motor was still working.

A new set of genuine Bosch grease filters was ordered and fitted at the same visit - these come in at around 25 to 40 pounds for a pair depending on the model. The engineer also checked the ducting run to the external vent, which is something that often gets overlooked. A partially blocked or kinked duct reduces extraction performance significantly even when the hood itself is in perfect condition. In this case the duct was clear, which was reassuring.

The whole job, from arrival to sign-off, took just under two hours.

What This Cost and How Long It Took

Cooker hood repair costs in Midhurst and across West Sussex vary depending on what's actually wrong, but it's helpful to have realistic figures in mind before you decide whether to repair or replace.

A diagnostic callout from a qualified appliance engineer typically runs between 60 and 90 pounds, often including the first hour of labour. For simple fixes like a filter clean, a thermal cutout reset, or a bulb replacement, that callout cost may be the only charge. For the Midhurst job described here, the total came to around 95 pounds including labour and the replacement filter set - significantly less than a new hood, which starts at around 150 pounds for a basic model and rises to 400 to 600 pounds or more for a quality recirculating or ducted unit.

Motor replacement is where costs climb more meaningfully. A new extraction motor for a mid-range hood typically costs between 60 and 150 pounds for the part, with labour on top. Expect a total bill of 150 to 250 pounds for a motor swap on a standard canopy or chimney hood. At that point it's worth comparing against replacement, particularly if the hood is more than eight to ten years old.

Control board or touch panel replacement sits in a similar range - 120 to 300 pounds all in, depending on the brand and whether the part is still available. On older or discontinued models, parts availability can be the deciding factor. Our engineers carry common parts for Hotpoint, Beko, LG, and Bosch, but more specialist or premium brands may require ordering.

In terms of time, most cooker hood repairs are completed within one to two hours. Ducting inspections or installations take longer - typically two to four hours depending on the route and property type. Midhurst properties, including the older terraced and semi-detached housing in the town centre and the larger detached homes on the outskirts, vary quite a bit in terms of how accessible the extraction ducting is.

How to Spot the Same Issue in Your Home

The good news is that most cooker hood problems give you warning signs before they become complete failures. Here's what to look out for:

Reduced extraction performance over time. If cooking smells linger longer than they used to, or steam isn't being drawn away as effectively, check your grease filters first. Hold them up to the light - if you can't see through them clearly, they need cleaning or replacing. For recirculation hoods, also check when you last replaced the carbon filter. If you can't remember, it's probably overdue.

The hood is louder than usual. A change in noise level - particularly a rattling, grinding, or humming that wasn't there before - is worth investigating promptly. Worn bearings get worse with use, and what starts as a minor noise can become a motor failure if left.

Intermittent operation. If the hood works sometimes but not others, or cuts out after running for a few minutes, thermal protection is a strong candidate. Check your filters and clean them before calling anyone out.

No response from controls. On touch-panel hoods, check for moisture around the panel and wipe it dry. Some hoods also have a child lock feature that disables the controls entirely - check your manual if the hood seems completely unresponsive.

Lights failed but fan works (or vice versa). These are often separate circuits, which means one can fail independently of the other. Don't assume the whole hood is dead because one function has stopped.

To diagnose systematically, work through these steps:

1. Check the plug and the fuse in the plug or consumer unit.
2. Remove and inspect the grease filters - clean them if they're dirty.
3. Check the carbon filter if your hood recirculates rather than venting externally.
4. Try switching the hood off at the wall for ten minutes, then switching back on. This can reset a tripped thermal cutout.
5. Check for a child lock or control lock function in your user manual.
6. If none of the above restores function, the fault is likely internal - motor, PCB, or wiring - and it's time to call an engineer.

What Every Midhurst Homeowner Should Know

The most important lesson from jobs like this one is that cooker hood maintenance is genuinely easy to neglect because the consequences are slow and gradual. Unlike a boiler that stops working and makes itself immediately and urgently known, a cooker hood degrades quietly. Extraction gets a little weaker. Smells linger a little longer. You adjust without noticing. Then one evening the whole unit trips and it feels like a sudden failure, even though the warning signs have been building for months.

For Midhurst homeowners with kitchens that see regular cooking - and particularly for anyone cooking on gas hobs, which produce more combustion byproducts than electric - keeping the cooker hood in good working order is a genuine health and air quality issue, not just a convenience one.

Here's what our engineers recommend as a maintenance routine:

1. Clean grease filters every four to six weeks if you cook regularly. Most can go in the dishwasher or be soaked in hot water and washing-up liquid. Check your model's instructions first - some filters are dishwasher safe, some aren't.
2. Replace carbon filters every three to six months on recirculation models. Order filters using your hood's model number to make sure you get the right ones. Generic filters exist but genuine manufacturer filters typically perform better.
3. Listen to your hood. A change in sound is almost always telling you something. Catching a worn bearing early is a 20-pound fix. Ignoring it until the motor fails is a 200-pound fix.
4. Don't block the external vent. If your hood ducts outside, check that the external vent grille is clear of debris, particularly if you're in one of the more rural parts of the Midhurst area where bird nesting can be an issue in spring.
5. Keep your model number recorded somewhere accessible. Whether it's a Bosch, a Beko, a Samsung, or something less common, knowing the exact model number makes sourcing parts significantly faster when something does go wrong.

One thing that surprises some homeowners in West Sussex is how often a cooker hood fault turns out to be a ducting problem rather than a hood problem. If you've recently had building work done - a new kitchen, a loft conversion, any work near external walls - it's worth checking that the duct run hasn't been accidentally blocked, kinked, or disconnected. A fully functional hood attached to a compromised duct will perform terribly and may eventually suffer motor damage from the restricted airflow.

For recirculation hoods that filter and recirculate air rather than venting outside, the performance is entirely dependent on the carbon filters being in good condition. In the experience of our engineers covering Midhurst and the wider West Sussex area, this is the single most overlooked maintenance item in domestic kitchens. A carbon filter that's past its useful life doesn't just smell - it restricts airflow in exactly the same way a clogged grease filter does, putting unnecessary stress on the motor.

Finally, if you're making a decision about whether to repair or replace, the rule of thumb our engineers use is simple: if the repair cost is less than half the cost of a suitable replacement, repair is usually the right call, provided the hood is less than eight years old and parts are available. Beyond ten years, factor in that other components may be approaching the end of their life even if the current fault is fixed.

Related Questions

Why has my cooker hood stopped working completely but nothing else has lost power?

The most common reason for a cooker hood to go completely dead on its own - without affecting other appliances - is a tripped thermal protection cutout inside the motor. This is typically triggered by restricted airflow caused by clogged grease or carbon filters. Try cleaning the filters, switching the hood off at the wall for fifteen minutes to allow the motor to cool, then switching back on. If it still doesn't respond, the fault is likely inside the unit and will need an engineer to diagnose and reset or replace the relevant component.

How often should I replace the filters on my cooker hood?

Grease filters should be cleaned every four to six weeks if you cook frequently - most are dishwasher safe or can be degreased in hot water. Carbon filters on recirculation hoods are a consumable item and typically need replacing every three to six months depending on cooking volume. Check your hood's manual for the manufacturer's specific guidance. Using your hood with spent or blocked filters not only reduces performance but accelerates wear on the motor over time.

Is it worth repairing a cooker hood or should I just replace it?

For hoods under eight to ten years old, repair is usually worth considering if the fault is clearly identified and the repair cost sits below roughly half the price of a comparable replacement. Simple faults - filters, bulbs, thermal cutout resets - are almost always worth fixing. Motor replacements are a closer call, particularly on older units. Control board failures on budget hoods can sometimes exceed the economic repair threshold, at which point a new unit makes more sense financially.

Can I repair a cooker hood myself or do I need a professional?

Some tasks are well within DIY reach - cleaning or replacing grease and carbon filters, swapping out a failed bulb, or checking that the hood's plug fuse is intact. If the fault goes beyond that - motor failure, control board issues, wiring faults, or anything involving the ducting connection at the wall - it's worth getting a qualified appliance engineer involved. Working inside the hood's casing involves electrical components, and incorrect reassembly can create fire risks or void any remaining warranty. For Midhurst residents uncertain about the fault, the Voltrade GoFIX diagnostic tool can help narrow down likely causes before an engineer visits.