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Burde Kamath  
#1 Posted : Monday, February 11, 2013 4:08:13 AM(UTC)
Burde Kamath

Rank: Member

Groups: Registered
Joined: 2/10/2013(UTC)
Posts: 2

Microwave fuse blows out when I touch the keypad for heating a food item, indicating shorting somewhere. How can I find out where the shorting occurs and repair it?
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Simon / APP Team  
#2 Posted : Monday, February 11, 2013 1:49:51 PM(UTC)
Simon / APP Team

Rank: Advanced Member

Groups: APP Team
Joined: 2/12/2012(UTC)
Posts: 5,556

Hi.

Most likely there is a bad hi-voltage capacitor Part number: WB27X10011
Part number: WB27X10011


To check it unplug the unit, discharge the capacitor using two screwdrivers with the plastic handles (cross screwdrivers touching both capacitor's contacts).
Using the multimeter check the resistance, first between the contacts (with all wires removed from the capacitor). On the analog meter you should see the spike followed by infinity.On the digital-no continuity.
Next check each contact to the ground. Should be no continuity.
Replace the capacitor if it's bad.

Here is the breakdown diagram and Microwave parts for GE JVM1740DM2WW - AppliancePartsPros.com

Post the results.

Simon.
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