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-   -   Whirlpool accuwave Not Heating (http://forum.appliancepartspros.com/microwave-repair/506790-whirlpool-accuwave-not-heating.html)

John Redd 11-15-2012 08:38 AM

Whirlpool accuwave Not Heating
 
the microwave listed above quit cooking. I disassembled it and checked the following:

ohmed fuse
ohmed magnatron Short between terminals, open-terminals to ground
checked voltage coming into inverter board- 120v
checked magnetron thermistor- closed
ohmed interlocks-good

since i had voltage coming into the inverter, my thought it must be the inverter since the magnatron ohmed ok. I replace the inverter and it did not heat at first, then it started heating. I installed it (over the range) and tested it and it heated. this morning it does not heat

i can see the magnatron glowing red inside when it was working. it has made a slight hissing noise a few times (pulsating)

unfortunately, i found this forum too late....i just read that you can order parts and return the ones you do not use! How amazing is that? I just spent $120 on this microwave for the inverter and it may not be the problem.

any suggestions will be greatly appreciated. the only thing I have not tested is the voltage/signal coming into the inverter from the control panel. it is a 3 wire plug and I cannot find any information on what the voltage/signal should be into the inverter

At this point I am thinking the magnetron is bad...or could it be the control panel and the voltage/signal on the 3 wire plug....being intermittent makes it even harder to find the right part without spending more than the microwave is worth.

Simon / APP Team 11-15-2012 02:42 PM

hi.

If you still have the 120VAC to the inverter replace the magnetron Part number: 8206079

Part number: 8206079


Simon.

John Redd 11-15-2012 03:09 PM

what is the voltage/signal on the 3 wire plug to the inverter? could this affect the output of the inverter?

thanks for the quick reply:)

Simon / APP Team 11-15-2012 04:11 PM

It's possible, but no literature can be find for this model and similar models has different wiring.
So I suggest you to try the new magnetron first. As you know it's returnable even if you install it.

Good luck.

Simon.


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