Question about GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Dead microwave Microwave simply stopped working (as though all power was cutoff, light and all). Plugged into different outlet with no effect. Could this just be a blow power fuse? We were using our microwave to bake a potato when the unit suddenly shut down. No lights, clock or anything. I checked circuit breaker and it was NOT tripped. I cycled power with the breaker and the oven began working again. My first thoughts were a thermal overload had tripped. Sounds like I am not the only one with this problem. How do I confirm if the overload is defective and where do I get a new one? Thanks

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  • Anonymous Mar 15, 2014

    The oven just will not show any signs of power. Checked the circuit breaker and also see that power is coming to the outlet but it stays totally shut down.

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There are replacable fuses inside. Taking the microwave apart requires removal of a lot of screws and the cover that can be rather bulky. make sure it's unplugged and safe before you begin. you can get replacement fuses at radio shack, ect. be sure to buy the same type and amperage. if the blow a second time there may be other issues.

Posted on May 27, 2009

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SOURCE: microwave power shut off and stopped working

You can test safety thermostats with an ohmmeter. There should be a short circuit between the device's two terminals if it's closed. (This doesn't necessarily mean the device is good, though. It might be opening at too low a temperature when the oven is operating.) A high resistance or an open circuit means the thermostat has opened and needs to be replaced. An appliance parts store should have suitable replacements, or you can order from a number of online vendors. I usually start at the Sears parts site. They have part information for many models, and usually pretty fair prices for parts. But once you have the part number you need, a Google search will let you shop around.

It does sound like your oven shut down because of a thermostat. One is normally mounted on the magnetron tube that supplies the microwaves, and another is on the cooking cavity. I've had to replace these many times. If the main power fuse blows the oven will not come back on until it's replaced. But you might also have bad solder connections causing the trouble as well. I've seen solder joints on the control board and power filter board cause dead ovens.

If you're not absolutely sure of what you're doing working on a microwave, you might want to let a professional check it over and make an estimate. There are potentially lethal voltages present, and microwave leakage may be a concern as well.

Posted on May 28, 2009

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1 Answer

MY microwave just stop working all of a sudden what can I do


-Have you try to plug it to different outlet to see possibly the outlet has no power. Or try different circuit to plug into the one the microwave plug in to see it work or not. If no work then there is not power at that outlet. The breaker is pop.
But if it works then you possibly need new microwave.


Good luck


Mai

Dec 13, 2017 | Microwave Ovens

1 Answer

The power light no longer turns on, despite it being plugged in. What may be the problem? A fuse?


Yes, it can be a fuse (usually a 20-amp fuse), or it can be a thermal cutoff device (called a TCO or thermostat) that is usually located above the cooking cavity (under the outer panel).

If you need further help, reach me via phone at https://www.6ya.com/expert/ronald_e6b9572cebe3ad27

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>> We also tried plugging our toaster into the microwave plug outlet, and the toaster wouldn't work in that outlet, but worked just fine in a different outlet in the RV.

This means the outlet you plug your microwave into needs to be fixed in addition to fixing the oven. Breaker? Fuse?

>> I understand from another RV forum that microwave ovens for RVs have "special circuitry and cooling features" not found in regular countertop ovens for household use.

Not really in my experience. Any microwave supplied with clean AC power and proper venting space will be fine.

But I'd bet your microwave can be fixed affordably.

The main internal things which can result in this model being dead (no display, no light when you open the door, no beep when you press a pad on the keypad) would be the 20A fuse and the magnetron temperature fuse. There could also be bad connections on the noise filter board.

Also, sometimes a power surge can cause the power to be interrupted to the low voltage transformer on the board, and I regularly repair those boards. I can also write a technical statement to your insurance company or to an RV park as needed.

At my Web site, I have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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You can order Sharp parts from Sears or Encompass.

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1 Answer

Microwave power shut off and stopped working


You can test safety thermostats with an ohmmeter. There should be a short circuit between the device's two terminals if it's closed. (This doesn't necessarily mean the device is good, though. It might be opening at too low a temperature when the oven is operating.) A high resistance or an open circuit means the thermostat has opened and needs to be replaced. An appliance parts store should have suitable replacements, or you can order from a number of online vendors. I usually start at the Sears parts site. They have part information for many models, and usually pretty fair prices for parts. But once you have the part number you need, a Google search will let you shop around.

It does sound like your oven shut down because of a thermostat. One is normally mounted on the magnetron tube that supplies the microwaves, and another is on the cooking cavity. I've had to replace these many times. If the main power fuse blows the oven will not come back on until it's replaced. But you might also have bad solder connections causing the trouble as well. I've seen solder joints on the control board and power filter board cause dead ovens.

If you're not absolutely sure of what you're doing working on a microwave, you might want to let a professional check it over and make an estimate. There are potentially lethal voltages present, and microwave leakage may be a concern as well.

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1 Answer

NO POWER


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2 Answers

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Generally, you get something unless the fuse inside is blown. There is generally a fuse inside the unit when you remove the button package. First, make sure that the outlet you have is good. Plug something else into it and see that it works.

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1 Answer

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