Question about GE JVM1440 Microwave Oven

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My RV unit got a power surge and the microwave looks dead.

Is there and internal part of fuse that can be replaced to get the unit working. GE says the unit is dead and I need to buy a new one.


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  • jakaro Jan 22, 2008

    I have a JVM 1440 and I started it up and it went dead in two seconds. I trouble shot all power and breaker issues and they were fine. Unit shows no display or any function now. Could it be a computer chip issue issue?



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Yes they have fuses, I am positive it's your fuse, take all 5 screw's off and you'll see it at the back on the right hand side were the ac cord goes in.



Posted on Jan 20, 2008


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Sharp Carousel Microwave Mdl 1875 for our RV is dead

>> 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.

The relevant service manuals for this model are here and here.

You can order Sharp parts from Sears or Encompass.

Contact me directly if you need more help.

- William E. Miller, AS-EET
Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

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1 Answer

How do I replace the internal fuse on my Over the Range GE microwave? I opened the microwave door and and there was a quick spark after which the microwave went dead with no power. I have checked the...

I would say the lamp popped and took the fuse, so you will need to replace the lamp also.

Dead appliance, power on wall outlet.


Attempt this only if you are competent.

If your appliance has absolutely no functions at all, remove it from the mains supply, remove the case and see where the mains lead goes in to the appliance and follow the cable until you find the main fuse.
The usual cause of this fuse failure is the door switches are contaminated or sticking. Check the door switches before putting power back on to the appliance.
Hope this helps.

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Model MX6110XB. Nothing worked. LCD panel was dead. Unplugged and replugged; and everything works.

This fix described for the GE Spacemaker. They say problem result of a power surge. Apparently applies to different manufacturers; or does GE make Whirlpools?

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Our sylvania microwave model sr11092b received a power surge that blew the internal fuse and would not run (it also fried the power converter in my rv)\r\nReplaced power converter, replaced internal fuse...

I had the EXACT same symptoms with my Sylvania SR1109sb after a power surge.
After some digging around I thought what the heck let me try holding down the Reset button and do a power off/on cycle and what do you know it worked !!!
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I had a power surge in the house and now my GE sensor Microvawe is stone dead. Any ideas.

It is possible the main fiuse in the Microwave has blown. Sometimes this is a special ceramic fuse and costs around $30. But to get to the fuse you have to remove the outer cover of the microwave( unplug it first) It is usually located on Top left side of the unit. Once replaced it should return to service.

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Could be open internal fuse or other electrical issues

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Sounds like the fuse. I recently replaced it. Remove the grill (look on top of your microwave for two screws) and you'll see the fuse to the right side of the microwave. You can get the fuse at Home Depot.

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GE Microwave - Power Cord Appears to be Dead

Most microwave ovens are equipped with an internal fuse. This is typically located where the power cord enters the cabinet. The cabinet will have to be opened to verify the fuse.

The magnetron is not directly attached to the power source, it has to be stepped up in voltage significantly, either through a transformer or inverter.

It is usually best to have professional tech check the fuse for operation. Most shops will do this for a small fee if you drop the unit off yourself.

Jul 28, 2008 | GE JE1860 Microwave Oven

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You may have a blown internal fuse. While I would recommend that you take the unit to a qualified repair center, you can do a little troubleshooting on your own. You''ll need to unplug the unit, remove the outside cover and follow the line cord and you should find the fuse.

Replace it with the EXACT same value that was labeled on the original fuse. You'll probably be able to find a replacement fuse at any Radio Shack store or hardware store.

Replace the cover and plug the unit back in. Hopefully nothing was damaged and the unit will play again.

If the unit does not come back on, then there is a possibility that the unit's power supply has failed.

Please let me know if I can be of further assistance to you.

Good luck!

- Jim

Jul 02, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

Dead micro

It could be a bad in-line circit breaker fuse. Unplug the microwave and take the outside cover off. Look for the in-line circuit breaker fuse. Use a plastic fuse puller (not your hands or a metal tool as there is still voltage stored in the microwave even when it is unplugged). Look at the fuse and see if it is blown. (The metal wire running length of tube will be broken. If you have one, test with an Ohmmeter.

Jun 03, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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