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George-Allsorts
George-Allsorts, Senior Appliance Technicial Manager
Category: Appliance
Satisfied Customers: 1448
Experience:  A whitegoods technician with 30+ years service in Domestic Appliance Service & Repair, and General Mechanical & Electrical Repair
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I have a bosch hme9750gb combination microwave / oven. when

Resolved Question:

I have a bosch hme9750gb combination microwave / oven. when used as oven and it reaches over about 100 degrees the display panel symbol flashes and the fan stops (presumably also the heating ring). if i wiggle the door it starts working again for short time. I wonder if there is an elec contact in the 2 door catches at the top. have tried WD40 but no improvement. Appreciate advice please.....
many thanks
Kenn
email: *****@******.***
Submitted: 1 year ago.
Category: Appliance
Expert:  George-Allsorts replied 1 year ago.
George-Allsorts :

Hello Kenn, my name is George..

There is a switch, but this sort of repair should be undertaken by a competent microwave specialist as the cover needs to be removed to facilitate removal and repair/exchange of the switch...
Repair of the switch/s is a technical procedure, and if not done, or done correctly, with the symptoms you have can damage the Power Module and Display Modules at the front of the appliance..

If you do not have the switch/s repaired and this damages the boards, or by attempting a repair yourself you damage any of the boards, the two Display Modules are priced from Bosch respectively at £182 and £175, and the Power Module at £152.

Kindly be patient whilst awaiting any responses from me as I'm not constantly available.

Customer:

Hi George

Customer:

Hi George. are you saying that there is a switch in one of the door catches? if so which one is it? is it not possible to clean it out from the front as they both look a bit greasy? can you also advise on cost of repair if cleaning doesn't do the trick? many thanks ... Kenn

George-Allsorts :

Hi Kenn, the symptoms you have point to the switch itself.. it is this factor that makes me encourage you to have the switch/s changed..

It is not possible to clean the switches from the front. It is also not a good idea to squirt WD40 in the catch receptors.

On your model I think the switch case covers both catches... Usually there are two or more switches in the switch case.

As for cost, it is individual to the engineer... But the cost of not changing it and something going wrong can be enormous.

regards
George

George-Allsorts :

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Hi Kenn, please take a moment to rate my assistance.. Please use the smiley faces to do this.

George-Allsorts, Senior Appliance Technicial Manager
Category: Appliance
Satisfied Customers: 1448
Experience: A whitegoods technician with 30+ years service in Domestic Appliance Service & Repair, and General Mechanical & Electrical Repair
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