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If it is not cooking and the turntable will not turn, this sounds like the secondary interlock switch is bad. Almost always this failure is caused by opening the door when it is in a cook cycle. Pushing the stop button before you open the door will prevent this in the future..
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Hi,
Here is a tip that will help you to figure out what is wrong with your
Microwave Oven....
Grinding sound may be the turntable not sitting properly on its support. Regarding the heat issue, check the door safety interlock switches for proper function.
As you use your oven, open the door while it is running, arcing occurs on the little contacts and they eventually burn. When they cannot make contact, the oven doesn't know if the door is closed or not. Forget what YOU know about the door ... the oven must know and it knows by the information it gets from these switches. Door open, the oven will not turn on the heat.
Please check your door safey interlock micro switches.
If you need help with this, please let me know.
What frequently happens is because you probably open the door while the oven is running, (like most of us do) the little micro switches get burned and eventually cannot tell the oven that the door IS, indeed, closed. When the door is "open" (forget that you know the door is closed - the MACHINE needs to know it too) the oven will not turn on the heat.
I suspect the magnetron or high voltage transformer, and either part's cost or labor would probably be about the same as the cost of a new comparable unit.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
You may have a control board issue. Thank God for safety switches.
This is a problem that an integrated circuit tech. can repair, but it may be costly.
Decide how much you want to put into this oven vs. buying a new one.
Contact me once you decide and I can help you find a service center.
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