Question about Whirlpool 1.6 Cu. Ft. Over-the-Range Microwave
Thanks for using FixYa. If it’s a loud hum/buzz sound then 90% it’s usually a bad magnetron and other times it’s a bad high voltage diode. However, from what you have described it seems to be the magnetron. Please do rate the solution if the issue is resolved or post a comment for further assistance.
Posted on Jun 02, 2010
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Posted on Jan 02, 2017
SOURCE: microwave turns on and rotates
With these symptoms,you probably have a shorted high voltage rectifier diode or a bad magnetron.
Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
should also be a "mini-manual" hidden inside the unit behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting & testing.
We\'re happy to help you with free advice and we\'d appreciate your thoughtful rating of our answer.
Posted on Sep 09, 2008
Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.
The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.
There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.
Posted on Apr 29, 2009
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