Question about Kenmore Microwave Ovens

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No heating Kenmore Model No. 665-4438911 Microwave (wall unit) quit heating this morning. There is still power to the unit (clock), but light in the unit doesn't work. Used it to heat some dog food, then it didn't work when heating the next plate of cat food. There is an audible click, but no light or heating.

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  • blackoakfarm May 26, 2009

    That pretty much confirms my suspicions. It's a 19 year old model and replacing it is probably what I'll do. Thanks.

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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.


Benjamin

Posted on May 26, 2009

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