Question about Microwave Ovens
I may be able to give you more targeted help with the brand and model number.
Otherwise, here goes:
Generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)
If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Apr 08, 2008
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Posted on Jan 02, 2017
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Asker's Testimonial " explanation very clear. will give it a go and see how simple it was. thanks Ronnie " - ronnieshomes
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