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    • Part Number: AP4243229
    • MFG Part Number: M0805101
    • Made by: Whirlpool
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For Whirlpool Fuse (Part Number: AP4243229)

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Everthing on th Jenn-air microwave seems to work, light, timer, turntable, han, etc, however not heat. Any ideas. Would like to replace with a like model size or repair.

Brian for Model Number jmc7000adb

ANSWER Hello Brian, There could be a number of things that could be wrong. Could be diode, the diode can be tested using multimeter and check continuity. If open then replace diode. Check the thermal fuse the same way by checking continuity. You would want to test resistance of the HV capacitor. The resisitance should go down which would mean the capacitor is good. Check magnetron for resistance. A 0.5 ohm reading would be a good reading but also check the magnet to make sure that it is not cracked. If cracked then replace. The last thing would be the HV transformer. If all else checks ok then replace the transformer. 

Answered by AppliancePartsPros.com   |   Wednesday, January 30, 2013

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