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bnhmiles  
#1 Posted : Thursday, March 15, 2012 3:33:46 PM(UTC)
bnhmiles

Rank: Member

Groups: Registered
Joined: 3/15/2012(UTC)
Posts: 1

My microwave does not heat and makes loud buzzing noise...

Tested diode...showed infinity...checked bad...replaced with locally purchased part...part number did not match parts breakdown for my model # but was told it would work by salesman...does part number matter?

Tested magnatron...showed less then 1 ohm (.4 & .5) per terminal and infinity to case?

Tested capacitor...showed 0 at each terminal and infinity to case...ordered part and replaced but did not resolve problem

Unsure of where to go from here...any assistance would be greatly appreciated!
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#2 Posted : Wednesday, March 21, 2012 11:54:17 AM(UTC)
mattt

Rank: Member

Groups: Registered
Joined: 12/1/2008(UTC)
Posts: 0

Hello. The loud buzzing sound is a sure sign of a bad magnatron I would replace Part number: AP4057047
Part number: AP4057047
Thank you and good luck !
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