Oven
Worn fan motor or loose fan blade.
Symptom: Rattling or whirring fan · Typical cost: £70–£150.
Bearings wear.
The fix:Replace the fan motor.
The blade is loose.
The fix:Tighten or replace.
£70–£150.
If you can see leaks, smell burning, or the appliance is tripping the electrics, stop using it and unplug it. For minor faults without those signs it is usually safe to leave it off until you can diagnose it. Always switch off and unplug the appliance before inspecting it. Never work on gas appliances or fixed electrical wiring yourself — call a Gas Safe registered engineer or a qualified electrician.