Question about Whirlpool MH1150XMQ Microwave Oven
I have a Whirlpool MH1150XMQ microwave that stops cooking after ~4 mins of operation. The microwave continues to operate/look/sound like it is cooking, but food remains uncooked, then without warning after an additional ~4 mins of cooking, it will begin cooking again. I thought about overheating, but I could turn it off for 5-10 minutes after it stops cooking, but it still won't cook after a cool down until it operates for that 4 minutes or so. If I don't operate it for several hours it will cook just fine for ~4 minutes regardless of length of previous operation. Any ideas on this one?
It sounds like your magnetron is failing, but 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
There should also be a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on May 02, 2008
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