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Kenmore model 911.4942993 microwave does not defrost or heat. All keyboard functions appear to be normal. Are there onboard diagnostics for this model? This unit is part of a built-in oven with microwave, and I would like to repair it if reasonably priced.

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This was my first microwave oven repair, and I feared the worst - big $$$'s, parts no longer available, etc. But after I pulled the unit forward and found the schematic diagram, it turned out to be a defective microswitch in the secondary door latch circuit.
Even in retirement, my degrees in electronics and computer science occasionally save me some $$$'s.

Posted on Aug 08, 2008

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