Question about Whirlpool Microwave Ovens
I have a hard time believing that ALL the high-voltage parts would be bad at one time, especially the transformer. That's a part that almost never goes bad. I don't think I'd trust the tech's diagnosis.
However, a bad door switch will keep the oven from working properly, so the tech is right about the trouble being in the magnetron or its associated parts. This doesn't mean they are all bad, though. The most common failure is the magnetron itself, which can burn out like a light bulb. Then everything appears to work but there's no heat. I think the tech who looked at your oven may not have known how to check the individual parts, or didn't want to take the time to check, and just decided to tell you they were all bad. If they really are, it's certainly less expensive to buy a new oven.
The trouble could be in the control circuit board or connections to it, so it doesn't on the power to the magnetron power supply. I have seen bad solder connections and loose terminals cause no heating. You should have the oven checked over again by another technician who will actually checks voltages and test parts to determine what's wrong. It only takes a few minutes to do it right, and then you'll be able to make your decision to repair or replace the oven.
Posted on Mar 27, 2011
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Posted on Jan 02, 2017
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