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Thread: PT7800SH5SS - Double Oven...microwave acting up with buzzing sound

  1. #1
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    Default PT7800SH5SS - Double Oven...microwave acting up with buzzing sound

    Model Number: PT7800SH5SS
    Brand: GE
    Age: 1-5 years

    Convection works fine but using regular microwave makes loud buzzing sound when starting to run. Light and base spin but not sure that we get heat with microwave option. Itís only 1 year old.

  2. #2
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    Default


  3. #3
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
    Posts
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    Sounds like a bad diode or HV capacitor. It's definitely one of the high voltage components. Remove power or unplug the machine and discharge the HV capacitor by shorting the two terminals together with a screwdriver. Here's how to test them:
    Click image for larger version. 

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ID:	42798 Click image for larger version. 

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    WB27X10037 Diode Assy, Diodecable


    WB27X11033 Capacitor High Voltage
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