Question about Microwave Ovens
The units turntable turns and the lights are on, but it does not heat. It made a hissing sound and then it discharged a smell that was electrical. Should I have it fixed or buy a new one? The unit is 9 years old and built in above the range.
With the symptoms you
have, I would most strongly suspect a failed high voltage transformer, which is an expensive fix.
It may also be a shorted high voltage rectifier diode (which costs less) or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.
If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.
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.
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 usually 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)
You can download Frigidaire / Whirlpool owner's manuals and installation instructions here.
They make removing the oven from the wall for service (or replacement) much easier.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Dec 28, 2008
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Posted on Jan 02, 2017
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