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YossiD  
#1 Posted : Wednesday, November 12, 2008 8:39:30 PM(UTC)
YossiD

Rank: Member

Groups: Registered
Joined: 11/12/2008(UTC)
Posts: 1

Old Philips microwave (posting from Middle East) blowing fuses.

HV capacitor tested short so I replaced it. Starting the microwave produces a loud hum (like transformer is overloaded) for a second or so, then fuse blows.

HV diode tests open in both directions, but my ohmmeter operates with 3V so I probably can't test it properly. Can an open diode cause the fuse to blow? If not, what should I check next?

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Gene  
#2 Posted : Thursday, November 13, 2008 12:03:16 PM(UTC)
Gene

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Check the magnetron (each terminal to ground) and recheck the new capacitor. Check the door switches.

Gene.
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