Bosch Extractor Fan model DKE945DGB

Try e-spares. The other alternative with control boards is to find an electronics engineer to check components. Switches tend to be generic.

https://www.espares.co.uk/browse/at1091ma1722/cooker-hoods/tecnik

https://www.google.com/search?q=tecnik+tke5445+parts+diagram

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what model do you have and/ or series, Thanks, Lee

I would like to help you with this, But with out looking at the light/fan I can't. So what you can do is find the make and model of the Light/ Fan go to there website and email there tech support. # 2 go to Home Depot and ask someone that works in the fan area to help you out.# 3 If you like email me a picture of the fan/ light in four different places, and I'll be able to help you out. [email protected]. My name is Jason

Yes, very possible!. The bathroom fan is connected together, and the upstairs one is down-drafting to you. Have the exhaust checked for blockage, or buy a fan that has a built-in damper that closes the exit when not in use.

hi! most of the time this will be sticky switch normally located on the inside edge of the extactor unit behind the filter mesh!.hope his helps

sounds like
the extractor is mounted in a cold space, and the moist air is condensing on the cold fan as it exits,
the fan housing may need better insulation, and the flap valve in the exhaust pipe needs to be checked to ensure it is closing, and keeping cold air out
it is possible that condensate in the fan has fried the motor

something to check

Hi rags116,

I'm Harvey the Master Plumber.

Your problem is: You have a neff extractor fan which hasstopped working. The light and fan have both stopped working. Do I know where you can find the fuse as you suspect that this may be the problem. If I don't think it is the fuse would I be able to suggest anything else.
The type is D-AY25-8 If there is another number that is more helpful please let you know. thanks Again your Neff Series 2 extractor has stopped working and you want to save yourself buying a new one!! Any suggestions greatly appreciated!

Since both light and fan require low voltage it sounds like a bad transformer. It will be mounted next to the motor. Make sure you turn off the power first.

Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber

Hi
We have sealed leaking extractor fans with clear sealant,advised after calling the manufactures (it was out of guarrante)

yes, if the three switches are all made together, then there is only one feed. sounds like a bad switch, or possibly bad exhaust fan. check voltage at fan with switch on, if not qualified, be careful, or call an electrician

Hi - I have a neff extractor fan and have the same problem. The light and fan have both stopped working. Does anybody know where I can find the fuse as I suspect that this may be the problem too?