SOURCE: JVM1850BH02 Microwave completely shut down, not working after...
The extreme heat has opened up one of the thermostats / thermal cutouts (TCOs) in the oven.
If it was the bottom TCO or magnetron TCO, you should be able to access them by just removing the control panel.
But if it's the one on top of the cavity, the oven will have to come out of the wall, then you need to pull of the outer cover..
If
so, the installation instructions are very handy, and it's best to have
two people since the microwave can be heavy and awkward.
You can download GE
owner's manuals and installation instructions here.
There
should be a "mini-manual" (tech sheet) hidden inside the unit
behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting, testing, and locating components.
You should locate and look this over first.
At
our Web site, we have a video
available showing how to remove a typical
over the range control panel assembly in under 5 minutes.
You can usually find
helpful exploded view diagrams and order
parts by
entering your full model number here.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
If the microwave is loud or noisy only when cooking, the magnetron tube might be defective. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. Under normal circumstances the magnetron is nearly silent. However if it is damaged or nearly burned out it can begin emitting high pitched or growling noises. It's not normally dangerous to use a microwave oven when it makes these noises, but they are an indication that the magnetron is almost dead and will need to be replaced.
Enter your model number to see parts for your microwave.
If the microwave is loud when running the fan motor might be
Enter your model number to see parts for your microwave.
If the microwave is loud or noisy the stirrer motor might be worn out. The stirrer is a metal blade which slowly turns around, deflecting the microwave energy in a random pattern inside the microwave oven. As the motor nears the end of its useful life it begins to make grinding noises. The microwave will not heat food evenly without this stirrer, the motor should be replaced.
Enter your model number to see parts for your microwave.
If the microwave is loud or noisy the turntable motor might be worn out. This is a common problem and relatively easy to replace.
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