Kitchen Small Electric Appliances - Maytag Microwave not heating

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TWP
12-22-07, 08:12 AM
Help! Yesterday I cleaned our Maytag microwave (installed last year) and popped some popcorn without replacing the glass tray. It didn't pop very well, so I figured it must be because they tray wasn't there. Well, the last two times we've tried to use it, there is no heat. Have I totally fried our microwave? What could it be?

Robb51
01-21-08, 02:34 AM
Just today, 01/21/08, our microwave stopped generating any heat and has a loud humming noise. Might be the same problem as you have. Ours is a Goldstar microwave. I did some checking with a troubleshooting guide which reads,
Sympton=" Microwave runs but has no heat and has a loud or unusual buzzing or humming noise "
They said the most likely cause is a diode. which can best tested and usually replaced without much trouble. Some diodes will split open of exhibit some burn marks etc. I will be testing the diodes later today. Hope this is helpful.

Robb
Revue
01-21-08, 09:10 AM
Be VERY, VERY careful when working on microwave ovens. Even when off and unplugged there are capacitors inside it that store a lethal voltage!! A guy in my neck of the woods was accidently killed while working on one.

I am dead serious about this.