Question about Hotpoint RVM1435 Microwave Oven

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Won't heat, works otherwise

I recently got this oven from a contractor who replaced it for a customer. They claim it worked fine until there were some bad storms in the area one night. Now when you turn it on, everything seems to work fine. You can hear the distinctive sound of the magnetron's deep hum, and when running it on lower power settings, you can hear the magnetron turning on and off as it should. Trouble is, it doesn't heat anything. My question: How do I know for sure if its the magnetron? Could it be the HV capacitor instead? What else could it be if not those? Thank you

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Re: Won't heat, works otherwise

It's likely to be the magnetron or a bad connection on the FA terminal of the magnetron, but it may be a bad connection or relay on the control board. This is a page showing how a microwave oven works. A detailed, illustrated explanation. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: You can find helpful exploded view diagrams and order parts by entering your model number here: Also, this model may have a "mini-manual" / tech sheet inside which is very helpful in troubleshooting.

Posted on Jun 12, 2007

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