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-   -   Microwave not heating (http://forum.appliancepartspros.com/microwave-repair/87872-microwave-not-heating.html)

stedou 04-06-2010 09:54 PM

Microwave not heating
 
The microwave was workign fine the it stopped heating. Everything seems to work ok, power level at 10, light comes on fan runs, but there is no heating (microwaving) any ideas of what it may be?

magician59 04-07-2010 10:08 AM

You can help us with the diagnosis, if you have a meter and can do a few electrical tests. If you don't own a meter, you can get one for a very reasonable price at any electronics store. First check the outlet to make sure you have 120VAC, and that it is the proper polarity. Again, you can find a very inexpensive outlet tester almost anywhere, including Walmart.

stedou 04-07-2010 01:47 PM

Quote:

Originally Posted by magician59 (Post 205742)
You can help us with the diagnosis, if you have a meter and can do a few electrical tests. If you don't own a meter, you can get one for a very reasonable price at any electronics store. First check the outlet to make sure you have 120VAC, and that it is the proper polarity. Again, you can find a very inexpensive outlet tester almost anywhere, including Walmart.

Yes I do have a couple of meters Fluke and Simpson Analog and digital.

magician59 04-07-2010 02:01 PM

Ok, then:
Remove the cover and discharge the capacitor (after you have unplugged it, of course). Disconnect the power transformer secondary wires (these are the wires going to the capacitor and the magnetron). Plug the machine back in and select a cooking time and while it's running, check for 120VAC at the transformer primary wires. If no voltage (or considerably lower than 120V), the problem is in the control board. If you get the proper voltage, the problem is one of the high voltage components. Post your results.

stedou 04-07-2010 03:41 PM

Quote:

Originally Posted by magician59 (Post 205823)
Ok, then:
Remove the cover and discharge the capacitor (after you have unplugged it, of course). Disconnect the power transformer secondary wires (these are the wires going to the capacitor and the magnetron). Plug the machine back in and select a cooking time and while it's running, check for 120VAC at the transformer primary wires. If no voltage (or considerably lower than 120V), the problem is in the control board. If you get the proper voltage, the problem is one of the high voltage components. Post your results.

ok will do thank you, and then repost what i find.


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