keeps blowing 20a fuse after 2sec of cooking - Appliance Repair Forum

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Model: MH7130XEB-1	Brand: Whirlpool	Age: More than 10 years
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stateliner88		#1 Posted : Thursday, November 5, 2009 5:35:59 AM(UTC)
Rank: Member Groups: Registered Joined: 11/5/2009(UTC) Posts: 2		I have replaced the 20a fuse after the microwave went dead, thought that fixed the problem, but when I try to use the oven the fuse again blows. Do you know what could be causing the fuse to blow?


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stateliner88		#2 Posted : Saturday, November 14, 2009 10:29:53 AM(UTC)
Rank: Member Groups: Registered Joined: 11/5/2009(UTC) Posts: 2		fixed the problem myself by replacing the high volage capacitor, and diode. thought i would post this incase anyone else is having a simular problem. if you take out the capacitor you have to short out both terminals to dicharge any electricity stored in the capacitor or risk electric shock. The capacitor can be easily tested with an ohm meter. probe over both terminals and the reading sould slowly rise to a high resistance. The diode should read a short one way and infinite the other.


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