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John, restaurant equipment technician
Category: Appliance
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Experience:  25+ years experience. I'm now employed by a commercial cooking equipment service company
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bosch combination microwave oven hme9750gb 800w. high voltage

Resolved Question:

bosch combination microwave oven HME9750GB 800w. high voltage fuse blows every time microwave button is pressed.but oven still works. is my problem the magnetron or the high voltage transformer. I have already changed the condenser, to no effect
Submitted: 7 years ago.
Category: Appliance
Expert:  John replied 7 years ago.
It's most likely the transformer, as the magnetron does'nt usually draw enough current to blow the inline fuse.
Expert:  John replied 7 years ago.
One more thought to pass along. A transformer that's drawing enough current to blow an inline fuse usually hums during the cooking operation. Sometimes it's not loud, but if you listen closely, you can usually hear it.
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