Microwave problem

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shared by 3 users

posted by locpham on Jan 04, 2008

how to fix Microwave running but not heat

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2 Other Users Have The Same Problem

Posted by Guest on Jun 20, 2008

everything works, fan, power level, etc. but no heat. Is there a fuse in the heat circuit, I have been unable to come up with a wiring diagram.

Posted by Guest on May 27, 2008

GE Spacemaker JVM1650SH01 has power but doesn't heat. Only 3 years old. Turned microwave on and after 2 seconds there was a blue spark and a burning smell. Didn't heat after that.

Best Solution

posted on Jan 04, 2008

sedonix

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Guru
Rating: 86%, 497 votes

Magnatron is suspect. Need to put a voltmeter on the input (primary) side to the high-voltage transformer (big heavy iron thing in there) Should be getting 120Vac when it goes to cook cycle. Don't touch the other (high voltage) side of this transformer. If the power is there, you are looking at replacing either the magnatron or the high-voltage capacitor and diode. Its affordable if you do it yourself - buy the part on EBAY - lookup "universal magnatron"
Hope ya fix it!

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