Range cooker Cooling fan runs on after cookingwhat to check
A range cooker fan that keeps running for up to an hour after cooking is designed behaviour, and the maker of Stoves and Belling tells you not to switch the cooker off to stop it.
Before you start
When does the fan run?
The right answer depends on what you can see. Pick the one that matches.
Choose the option on the left that matches what your appliance is doing, and the answer for that case appears here.
When does the fan run?
Exactly what the manufacturers describe. The appliance is cooling itself down and the fan will stop on its own.
Nothing to do. Leave the cooker switched on at the wall until it finishes.
When does the fan run?
That is outside the published behaviour. A thermal switch that has failed closed, or a temperature sensor reading high, will hold the fan on indefinitely.
Worth reporting to the manufacturer. It is not dangerous, but it is not the designed run-on either.
When does the fan run?
Also published as normal. The fan is on a thermal switch and only starts once the appliance reaches a certain temperature, and it cycles on and off during use.
Check again towards the end of a long cook rather than at the start. If it never runs at any point during a full oven cycle, then ask about it.
What this means
A range cooker cooling fan that runs on long after the ovens are off is one of the most reported non-faults in this category, and the manufacturers are unusually forthcoming about it. Glen Dimplex explain the reasoning directly: the ovens are very well insulated to hold heat in during cooking, so after cooking the fan has more work to do and runs for longer than it did on older models, both to bring the appliance down to a low temperature and to keep the outside of the cooker cooler for safety. They put the run time at around an hour and say plainly that this is normal. Leisure publish the same conclusion in their troubleshooting table under the heading that the cooling fan continues operating although the hob is turned off, and their answer is three words long: this is not a fault. Rangemaster and Falcon say the fan may remain active after the grill or ovens are switched off, that this is normal and that it will switch off automatically; Smeg say the outflow of air from the back may continue for a brief period after the appliance is turned off; AGA say the fan on their module cooker continues until the unit has sufficiently cooled. Five manufacturers, one behaviour.
The instruction that matters more than the explanation is what Glen Dimplex ask you not to do. Their published wording is not to switch the cooker off at the wall before the cooling fan has stopped completely. That is worth taking seriously, because switching off at the isolator is exactly what an owner irritated by the noise will reach for, and it cuts the power to the fan that is currently taking the heat out of the appliance.
There is a second, quieter version of this complaint that is also normal: a fan that does not start the moment you switch the oven on. Glen Dimplex publish that the cooling fan is controlled by a thermal switch and only comes on once a certain temperature is reached, and that it is also normal for it to cycle on and off during use.
One last thing worth knowing, because almost nobody does. Glen Dimplex offer a free modification on relevant models that makes the cooling fan start immediately when the grill is turned on and stop sooner afterwards, reducing the run time to around thirty minutes. They describe the existing behaviour as working as expected and offer the change anyway.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| Designed run-on to cool a heavily insulated appliance | The better the oven insulation, the more heat is left in the cabinet at the end of a cook and the longer the fan has to work to clear it. Glen Dimplex give the run time as around an hour. | Common |
| Keeping the outside of the cooker cool enough to touch | A second stated purpose, and a safety one rather than an electronics one. The fan is holding the exterior panels down to a temperature that is safe in a kitchen with children in it. | Common |
| Hob electronics still above their working temperature | Leisure attribute the run-on specifically to the electronics in the hob, and say the fan will continue until those have cooled to a suitable temperature. On an induction model the fan may run after hob use alone. | Common |
| A genuine fan fault, which sounds different | Rattling, grinding or a fan that has become dramatically louder is not this. Glen Dimplex publish a separate code for a blocked or faulty fan in their 2022 induction table and it points at the fan inlet at the rear of the appliance, and Rangemaster and Falcon publish the other signature of a failed fan: a fascia that becomes excessively hot while the cooker is in use. | Rare |
What to try yourself
Let it run. Around an hour after cooking is within what the manufacturer describes as normal, and the fan is doing something useful for the whole of that time.
Do not switch the cooker off at the wall to silence it. Glen Dimplex specifically ask you not to isolate the appliance before the cooling fan has stopped completely.Check the noise itself rather than the duration. A steady whirr that is the same noise it has always made is the fan working. A rattle, a grind or a new vibration is a different conversation.
Look at the fan inlet at the back of the appliance if you can reach it safely, and clear anything obstructing it. A restricted inlet makes the fan work longer and harder for the same result.
If the run time genuinely bothers you and you have a Stoves or a Belling, ring them and ask about the cooling fan modification. It is offered free on relevant models and brings the run time down to around thirty minutes.
Get a qualified appliance engineer to look at your range cooker
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
£0
Time on site
5 minutes
Free. This is designed behaviour, and where the manufacturer offers to change it the modification is offered free of charge on relevant models.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related range cooker fault codes
- Oven will not turn onUsually simple to fixOn most range cookers the ovens will not heat until the clock has been set, and the timer has to be in manual mode. Three manufacturers publish this themselves.Related: same brand
- HUsually simple to fixH on a zone display means the glass above it is still hot enough to burn you. It is a warning rather than a fault, and every brand sets its threshold differently.Related: same brand
- Gas oven goes out after a minuteGet it checkedA gas oven that lights and then shuts down within a minute is usually the flame supervision device, and three manufacturers publish the same sixty-second answer.Related: same brand
- U400Get it checkedA 400-family code means the cooker has been connected to the wrong supply or wired incorrectly. Five badges from four manufacturers publish a version of it, and it appears at installation.Related: same brand
- How to isolate a range cookerUsually simple to fixAn electric or dual fuel range cooker has no plug: five manufacturers describe a wall switch near but not above the cooker on a 30 or 32 amp circuit. All-gas ranges are the exception.Related: same brand
Related guides
Common questions
How much electricity is the fan using while it runs on?
Both figures we have come from the same manufacturer and they do not agree, so here are both. The 2024 Belling manual says approximately one-third of a unit of electricity per hour. Their website in 2026 says less than a tenth of a unit per hour. Either way it is a small number, but we are not going to average two published figures into one that nobody printed.
What temperature is it cooling down to?
Again, two published answers from the same manufacturer. The 2024 manual says around 35°C and the 2026 website says around 45°C. Take the shape of it rather than the number: the fan runs until the cabinet is cool enough to be safe to touch.
Can I just pull the plug?
On an electric or dual fuel range cooker there is no plug: it is hardwired to a cooker circuit and switched at the wall, which is precisely why the instruction not to switch it off before the fan has stopped is worth stating. An all-gas range cooker may well have one — Belling publish that theirs are 13 amp rated and supplied with a plug — and their gas manual says the same thing about the fan in different words: the appliance must never be disconnected from the mains during use, and the cooling fan is designed to run on after the knob has been switched off. If you have already done it once, no harm is done, just avoid making a habit of it.
Is the fan the same as the fan inside the oven?
No, and they are easy to confuse. The fan oven has an element and a fan inside the cavity that circulate hot air around your food. The cooling fan is a separate fan that moves air through the body of the appliance and out of the vents, and it is the one that carries on after everything else has stopped.
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer support portal
- Manufacturer technical and service documentation
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.