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Forum Index => Range, Oven & Cooktop Repair => Topic started by: lishmah on December 02, 2008, 07:23:37 PM

Title: Microwave Oven appears dead
Post by: lishmah on December 02, 2008, 07:23:37 PM
Power outage occurred and now the machine does not operate. Is there an internal fuse?

Model JVM3660
Title: Re: Microwave Oven appears dead
Post by: JWWebster on December 02, 2008, 07:43:40 PM
their is always one just inside the microwave where the power cord ataches to the innards. 20 amp barrel fuse.
Title: Re: Microwave Oven appears dead
Post by: lishmah on December 04, 2008, 11:56:10 AM
Thanks JW, I will let you know what happens.  Bill
Title: Re: Microwave Oven appears dead
Post by: lishmah on December 06, 2008, 05:23:33 PM
There are two fuses, checked them both and they are both OK, the machine still does not work. Any other suggestions?
Title: Re: Microwave Oven appears dead
Post by: JWWebster on December 06, 2008, 09:37:49 PM
Might be a door safety micro switch.
Title: Re: Microwave Oven appears dead
Post by: lishmah on December 07, 2008, 07:25:06 AM
It is not just that the microwave doesn't work. When the machine is plugged in the panel lights do not go on. Would the door microswitch effect that function?
Title: Re: Microwave Oven appears dead
Post by: JWWebster on December 07, 2008, 09:00:55 AM
The switch does 2 functions:powers up the mag when the door is shut and turns the light on when you open the door. Since the control panel appears to be dead you need a schematic to see where the power comes from. There may be more fuses.
Title: Re: Microwave Oven appears dead
Post by: jomi on December 07, 2008, 05:18:39 PM
there is a little trasformer in the electronic control board. Check for primary open.
Title: Re: Microwave Oven appears dead
Post by: lishmah on December 09, 2008, 03:13:44 PM
Would you please tell me where the little transformer is in the electronic control board and how to check for the primary being open