Question about Microwave Ovens
Tons of people follow the basic safety rules and repair their own microwaves every year.
With a little expert assistance, it's not too hard.
When you hit Start to cook, do the inside light and turntable come on?
Is the noise a louder than usual hum or buzz?
If that's what the noise is like, I would most strongly suspect a shorted high voltage rectifier diode, a bad magnetron or possibly a bad high voltage transformer.
Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:
http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
http://www.gallawa.com/microtech/mag_test.html (continuity can be good even though it is bad!)
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.
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Dec 13, 2008
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