Question about GE JVM1190SY/WY/AY/BY Microwave Oven

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Blows fuse when in combination mode

I'm a union Electrician so I completely understand the hazards of servicing the units. I recieved a JVM1190AY for free today and replaced the fuse whenI got it home and it worked fine when I put it on microwave for a like 2 mins. with a cup of water. I then put it on combination and started to clean up all the tools and I dont think they ever used convection cause the probe was brand new in bag unit is very clean too. I really don't know exactly how these guys work I know they cycle back and for is what im getting but I was watching it when I was passing and saw that a countdown time had begun. It counted down for a couple awhile then just shut down all power gone. I figured it wasn't the microwave part due to how long it was on. any help would be great cause i dont want to take it down it needs a 15 amp fuse correct?

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Re: Blows fuse when in combination mode

First of all, I would direct you to our cirtical safety warnings available via our FixYa listing: It may be a failing HV transformer or magnetron, or possibly a failing heating element. The online parts list shows the fuse as 15 amp. Inside the unit is an envelope which contains an informative tech sheet with a wiring diagram, troubleshooting information, etc. If that alone doesn't help you solve it, I would invite you to send us a scan or clean copy of that tech sheet, and we can guide you further.

Posted on Feb 19, 2007

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