Question about Jenn-Air JMC7000 Microwave Oven

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Jenn-air model jmc7000

Microwave blows Circuit breaker randomly, has new circuit breaker in main box. I think the microwave is causeing this. Other day the microswave shut down for about a minute after it was running, appeared to reset itself and now running ok.

Posted by Ken German on

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Anonymous

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Can someone tell me where i can find fuse for microwave convection/grill oven 5kv 700ma There is a other no on the fuse TUV5m41GF

Posted on May 29, 2008

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Anonymous

Microwave has two high power diodes, this problem usually occurs when the diode which one end is grounded with the steel body of the oven becomes faulty and starts drawing more current, so you have to replace that one with the same type, replacement is very simple as no soldering requires, it has a clamp on one end and nut bolt arrangement with the grounded end, this component can easily be found near the outo transformer of the oven. Also if the oven stops heating, check this component it may be worn out, drawing no current for magnetron.

Posted on Feb 08, 2008

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MaxiTech

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One thing to check is that all the wire connections at the breaker are really tight. Also check the wiring connections behind the built-in microwave. I have had several cases of loose wiring causing breakers to trip due to the reduced ability of the connection to carry the rated amperage flow when the wire is loose. If it isn't a built-in, try temporarily placing it somewhere so it can plug in on another circuit where there is little or no load for a test.

Posted on Aug 31, 2007

William Miller

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First of all, a microwave should be on its own circuit breaker. It's very common for a breaker to blow if it has a microwave and a fridge, etc., on the same circuit. The fuse is usually rated at a lower current than the breaker, so it's very unusual for a microwave to blow a breaker without blowing the fuse. Once a breaker blows a few times, it should really be replaced. It has a bimetallic element which will experience metal fatigue and become inaccurate. This could be the problem, too. The breaker for a microwave should be no less than 15 amps, and 20-30 is better. If you or a friend has a a clamp-on ammeter, you can monitor the current the microwave consumes. This can be helpful in diagnosis.

Posted on Nov 01, 2006

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