Question about Magic Chef Microwave Ovens
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Microwave not heating up
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"
Posted on Jan 03, 2008
Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.
The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.
There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.
Posted on May 12, 2009
the only way the unit that ive encountered with that problem was when bugs aka roaches ran across the circuit board and turned on a range while the customer was on vacation. sorry for being blunt. let me know if this help. you never know this tip might help prevent a fire.
Posted on Feb 27, 2010
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