Question about Whirlpool Microwave Ovens
You may have a stuck relay on the control board which is causing something to come on when it shouldn't. Or it may be a door switch or door switch mount issue.
The first thing to try is a "hard reset". Unplug it from the power line for a minute, plug it back in, set the clock, then try again.
Let us know if the hard reset doesn't fix it.
Another thing would be to put a cup of cold water inside for a minute to make sure it's not cooking.
But either way, I think it's best to just unplug it and not use it until it is repaired, since it can damage the oven or pose a fire hazard.
We have critical safety & disassembly info (including a how-to video) at our site, linked here.
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
There 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.
Please write back with more details if you need further help.
We repair these control panels for customers nationwide with our guaranteed $39.95 service.
We're happy to help you and we'd appreciate your thoughtful rating of our answer.
Posted on Jul 19, 2008
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