Question about Microwave Ovens

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On the GE Spacemaker microwave jvm230wv001, unit went dead. I changed the fuse twice, light and fan went back on, but when i turned the unit on, they blew immediately. I was told it might be a thermistor(?) but I don't know what one is, let alone how to fix or change one.

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  • Master
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Most likely the fuze is blowing because something inside is shorted out. This protects the unit and also helps to prevent you from buring down your house. If you have replaced the fuze twice and it has blown twice, there is something WRONG. The thermistor could be the problem, but its an internal component and not intended for the consumer to change. If this is a new unit it may be under warranty, if it cost less than 100 dollars, you might be better off junking it. If you feel adventurous you could take the back of the unit off ad look for the thermistor, usually it is in a place that gets hot (that's why its there). This is not the only component that can cause fuzes to blow. The thermisior is a litlle flat (usually black) about the size of a dime or nickel, wtih two wires, in most cases a thermister won't short out but rather will just break apart, which usually will not blow a fuze. good luck

Posted on Mar 11, 2011

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  • Microwave Ovens Master
  • 6,771 Answers

It is more than likely a bad door switch, food gets into the switch and clogs it, or it becomes defective and needs to be replaced. I'am afraid you will need someone that knows their way around a microwave to be able to resolve this.

Posted on Mar 11, 2011

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1 Answer

Unit went dead. No fan, display, light, oven. Is there an internal fuse or reset?


There is an internal fuse. Be careful high voltages present even if the microwave is unpluged.

Good luck

Jan 03, 2014 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

We installed a GE Spacemaker Microwave. I put some potatoes in and the microwave was working, suddenly it went off. No light nothing, it just went completely dead. Came back ON after 15 mins,started...


The main fuse may be intermittent, causing complete power failure, the other possibility is a defective door switch not operating properly, or loose plug in the power feed, I suggest a technician to take closer look at the system because this could prove tricky to find the culprit.

Jan 26, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE JVM1430 Spacemaker is dead. Completely.


See my microwave oven safety file here.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor. How to test a high-voltage capacitor.

If it went dead several seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount. My door switch help file.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

If the fuse is easy to twist with your fingertips while it's in the holder, it's too loose.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

FixYa does not directly notify us experts of responses, so if you have other questions, please contact me directly.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

May 29, 2017 | GE JVM1430 Microwave Oven

1 Answer

GE PROFILE SPACEMAKER P/NO 8114-334-730 MICROWAVE TOTALLY DEAD!


Sorry Seanna, but I have been getting a lot of problems with GE microwaves. You can call customer care at 800-432-2737, but out-of-warranty repairs are very expensive. Sounds like your problem may be door latch circuitry which requires service. If your unit is old, consider replacing it as prices are very reasonable.

Ray

Dec 15, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE JVM1630BJ Microwave went completely dead with no power


Sounds like the bulb shorted, which is very common, and the first time it blew the fuse.

It sounds like when you put the new fuse in and tried it again, the bulb was still shorted, and this time it damaged the board.

We see (and repair) thisa lot. The problem is on the control panel, whichwe regularly repair nationwide by mail for $39.95 postpaid in about aweek.

Atour Web site, we have a videoavailable showing how to remove a typicalover the range control panel assembly in under 5 minutes.

This light failure oftenoccurs when a bulb goes out and the filamentshorts, or when the bulbs are removed or installed without firstunplugging the oven from the power line. Either can cause such afailure on the controller.

This can often alsoaffect the exhaust fan operation, too. The lights and fan can beinoperable or stuck on too.

Details of our serviceand critical safety information and disassembly information is at oursite, and our link is at ourlisting hereon FixYa.

Feel free to contact me directly (and please remind me of yourfull model number) for more information & help.

We'rehappy to help you with free advice and we'd appreciate yourthoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Dec 03, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave stopped nothing works fan lights buttons over counter ge spacemaker model jvm1630


A microwave can be dead for many reasons.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and

put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jun 19, 2008 | Microwave Ovens

2 Answers

GE microwave oven - just stopped stopped working


A microwave can be dead for many reasons.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

NOTE: There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jun 01, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE Microwave XL 1800


remove top cover of oven , check fuse and control unit, high voltage section and diodes and capacitor and magnetron,

Oct 28, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

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