Question about KitchenAid KCMS145J Microwave Oven
Since the noise is louder, I would suspect a shorted high voltage rectifier diode or failed magnetron.
That model may have a 5-year warranty on the magnetron.
Your owner's manual and warranty guide can be downloaded here, and on that same page you'll find Customer Service contact info.
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 02, 2008
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Posted on Jan 02, 2017
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