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Daniel T.
Daniel T., Home Appliance Technician
Category: Appliance
Satisfied Customers: 14814
Experience:  20+ yrs. experience in white goods repair. NVQ Level 2 electronics manufacturers training courses.
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Bosch HMG combi oven. Temperature selector has disappeared,

Customer Question

Bosch HMG combi oven. Temperature selector has disappeared, we only see the lights at the rear. Unable to heat oven
Submitted: 1 month ago.
Category: Appliance
Expert:  Daniel T. replied 1 month ago.

Hi

Can you post the model number please.

Regards

Customer: replied 1 month ago.
HMG/HME 84
Expert:  Daniel T. replied 1 month ago.

If you open the main oven door theres usually a rating plate there with the model on it. As the model number usually starts E-nr.

Customer: replied 1 month ago.
E-nr HME8500GB/01FD7510 beneath that it says 128198
Expert:  Daniel T. replied 1 month ago.

Thanks for that ive got it now.

Looking at this what its going to be is the display strip is faulty. This is a box which as tape going round it with the temperture display on it. What happens is the tape snaps so thats why you cannot see it and only see the lights.

For this you need to replace the display box. Now this isnt a cheap part as you are looking at £80 just for the part itself. And to replace it you need to remove the appliance and take the outer casing off. So it is a bit of a strip down to do this but if you are handy at diy repairs then you should be fine.

The part number for it if you want it is 00151479

Customer: replied 1 month ago.
Can i please clarify that it is the ordinary oven part of the unit (i.e. the bottom controls) which are faulty and not the microwave part of the unit. Does this make a difference?
Expert:  Daniel T. replied 1 month ago.

Yes thats the part that you turn to use the oven section. Its not the microwave side thats for the oven.

Customer: replied 1 month ago.
Finally, are you able to give me any advice on fitting i.e. how to access the broken part once the oven has been removed from its housing.
Expert:  Daniel T. replied 1 month ago.

Once you have the oven out and then remove the outer casing you will see it all from the right hand side of the unit.

As this is a microwave you need to make sure its unplugged and locate the high voltage capacitor and you need to discharge this to earth. As they can hold high voltages in there even when unplugged so if doing yourself that has to be discharged before touching.

Use discharge leads if you have one or if not you a screwdriver with a well insulated handle and use that to discharge it.

Then you can see the switching unit there. You will be able to work out how to remove it from there.

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