My AEG competence oven is making a loud buzzing noise coming from the top fan? The food tonight was either burnt or under cooked? The buzzing is also loud when switched off/cooling down? Any ideas please.

There is a cooling fan for upper and lower oven they run at the same time no matter which oven in use it is fed from the oven manager no way to trouble shoot without pulling oven out some models use same fan for both so you could have a blower on hand remove back panels to access fans take a lead off fan to determine which one noisey

lots of them do it. (Including ours unfortunately) in our case this is down to vibration in the casing the fan is screwed to and can be stopped temporarily by pressing something strongly against the top black casing just inside the grill door with the two ventilation slots in it. I wouldn't recommend doing this every time you need to cook obviously. Ours has done it for years it doesn't get any worse. it's not dangerous ( in my unqualified opinion ) and it doesn't affect cooking performance.

ISOLATE MAINS POWER BEFORE OPENING ANY PANEL
Several possibilites come to mind.
first Has this AEG two fans if yes , it has a top and back fan, the element on the back fan sounds like its either a bad connection or blown needs further investigation, the intermittent grill possibly a thermistat, of poor contact on a connection again. Rear and top panel access, you may have to remove the top fan.
Hope this has been helpful
John

when i bake a chocolate sponge cake it rises well,when cooking the top becomes cracked like dry earth and when switched off it comes down about a third. with my previous oven baking thesame recipee for 30 years i never had a problem- please advise the reason for this problem

Hello,

It seems like the element around the fan in the main oven has most probably burnt out and will need replacing.
Hpoe this helps,

If you are certain that the element is o/k, and it is not heating, then thwere are 2 possibilitues.

1- the oven thermostat could be faulty, whereby it is giving a feed to the element.
2-some ovens have a fan only setting, as well as heat and fan, make sure that it is not on a fan only setting.
Hope this helps.

If the fan is working o/k, then you need to replace the oven element.
This is located at the rear of the oven compartment, behind a removeable cover.
This should solve the prob.
Please leave feed back.
Thankyou.

If fan is working o/k, then you need to fit a new oven element.
Please rate my solution.
Thanks.

You neede to replace the oven element.
This is located at the rear of the oven compartment behind a removeable cover.

Oven fan probably burnt out