Question about Microwave Ovens
Here is a bit more detail: Placed the coffee in the microwave to heat.
Pressed the start button, a few seconds went by and there was a funny
noise and then no power at all.
I saw from another similar post that this could be a shorted high voltage capacitor.
But also checking the door switches and door mounts would be warranted.
Can you provide info on how to do this?
I have worked on computer logic boards changing out components, but very little experience with soldering. Does this repair call for soldering?
Reposting as I am not sure I posted correctly in recent post.
(I don't see any other posts from you, so let's stick to this thread)
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
I wouldn't suspect the door switches at this time.
If you or someone you know wants to look into this, we have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa.
We even have a video on our site that shows you how to safely & easily remove the control panel assembly in under five minutes.
You can probably find exploded views at the Sears parts site. The best place to order Sharp parts is Tritronics.
Please write back with more details if you need further help.
We're happy to help you and we'd appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
Posted on Jul 23, 2008
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