Question about Maytag MMV5000 Microwave Oven
This built in Maytag ~3 years old, stopped heating and started making a loud grinding noise when run. Turntable, lights, fan, still fine. Is it cheaper to replace it or get it fixed?
With the symptoms you
have, I would most strongly suspect a shorted high voltage rectifier
diode or a bad magnetron.
If you or someone you know decide to look into it, we have critical safety information and disassembly information at our Web site.
There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.
Also at our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.
You can find helpful exploded view diagrams and order parts by entering your full model number here.
Here are some links you or someone you know can use for test help, but read their safety warnings first:
(if it's not shorted or burned, it's probably okay)
NOTE: Since it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.
Some manufacturers will send you the magnetron to do it yourself. If nothing else, you can save about $75 for a home visit by taking it to the shop yourself.
To remove it from the wall, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.
Whirlpool customer service is here and you can also enter your model number on that page to download your owner's manual, installation instructions, etc..
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Jan 18, 2009
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