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#1 Posted : Friday, November 11, 2022 7:53:59 AM(UTC)
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Hey guys, I have a whirlpool rmc305pvs01 microwave/oven combo. The microwave works fine unless I press the "add a minute" button. When I hit that then start my 20 amp fuse will blow. any ideas? I already checked the magnetron, diode, capacitor, door switch, and high limit switch and they are all good.
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millard29  
#2 Posted : Sunday, May 5, 2024 10:27:00 AM(UTC)
millard29

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I have the same issue with my GE Advantium. I have no shorts in any of the magnetron, diode, capacitor, door switches (3 of them and one on the magnatron), tempswitches (3 or 4 of them), high voltage transformer. I have looked and used my multimeter to see if the control boards have continuity through out the boards and don't see any solder that looks burned/shorted out. Some discoloring but I think that is just because of its use throughout the years (no true burn marks).

Any idea's.

I am going to try to replace all the door switches anyway because it seems that is a tell tell sign of fuses blowing when trying to start up the microwave part of it.

Just FYI. I can use the convectional oven and heat lamp all day long and it doesn't seem to want to short out the 20A fuse. Just when I hit the microwave quick start or timed cooking using the microwave function to heat the food.
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