Question about GE Spacemaker JVM1640SJ Microwave Oven

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I have a jvm1430wd002 GE Microwave that is completely dead. The breaker and outlet are fine.

No light, no fan, no display. Is there an internal fuse of breaker?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9086 Answers

SOURCE: Complete Shut-Down

I woulds first suspect a blown internal fuse or a thermal cutout on the magnetron in your case, but a microwave can be dead for many reasons.

If it goes dead for just a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open. When it cools, it closes the circuit and allows power on again.

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

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

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Please write back with more details if you need further help.

We appreciate your thoughtful rating of our answer.

Posted on Nov 25, 2007

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MicrowaveSvc
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SOURCE: GE JES1344SK01 countertop microwave, no power

A microwave can be dead for many reasons.

It may be the fuse, which is usually located behind the grille or on the floor of the oven behind the control panel or between the door switches.

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

If the cavity thermostat needs to be checked or replaced you'll need to pull the oven from the wall, in which case you can download GE owner's manuals and installation instructions here.

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 (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.

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.

There should 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.

You can usually find helpful exploded view diagrams by entering your full model number here. Once you have the part numbers, though, I would suggest ordering parts here at a much lower cost.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Dec 17, 2008

housejess
  • 317 Answers

SOURCE: Wife left our GE spacemaker 2 running for 20

theres a fuse inside the unit

Posted on Nov 07, 2009

  • 34 Answers

SOURCE: GE Advantium 120 oven: Was boiling water and oven

You will need to remove the top grill vent first, then you can remove the screws coming in from the top of the grille vent then that will expose a screw holding down the control panel at the top. Remove the screw and remove the control panel. The fuse is located in a little 1" fuse holder just behind the front panel near the top.

Posted on Feb 05, 2010

Testimonial: "That's helpful to know. Found a similar feedback, "is usually a 15 amp Cerramic fuse (white color). Appliance parts places usually carry it.thanks"

SOURCE: GE Spacemaker microwave JVM140G just stopped

NO internal fuse. It is most likely, the magnetron, and or High power diode. As related In all likelihood the mangnetron has failed, or perhaps even the Power Supply. or a fault that is shutting the system down for safety reasons You need to have it serviced by a reputable service centre/man. Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Posted on May 10, 2010

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Sounds like the main fuse blew. It's either near where the power cord enters the cabinet, or behind the control panel (if an over the range unit).

You may also have some type of failure in the high voltage circuit; based on your description of the symptoms.

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Good luck

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One of the screws on the back of the cover may be a security TORX (the kind with a pin in the center of the head). Usually, if you tap on it with a hammer, you can remove it with a pair ov Vise-Grip pliers.

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sorry but yes its time to replace it,
oh,, by the way,,,
your very lucky to still be alive right now!!!
tinkering inside of a microwave could kill you,,,
inside of your microwave is a very big capacitor it works just like a police stun gun works,,,however it dont just stun you,,,it kills you! witch would realy spoil your day, be warned, many a fool has took a free flying losson from one of them but servived just!

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It sounds like the magnetron overheated and opened the thermal fuse on the magnetron.

This can be caused when the internal cooling fan is not running or by a magnetron that is failing.

When I say internal cooling fan, I do not mean the hood vent exhaust fan which you can turn on and off manually.

I'm instead talking about the internal fan which comes on automatically whenever you microwave.

It is vital that the cooling fan runs, or the magnetron will be destroyed.

There should 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.

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 also find helpful exploded view diagrams and order parts by entering your full model number here.

The magnetron will have a 5 to 9 year warranty. Your manual will tell you that.

You can download GE owner's manuals and installation instructions here.

If needed, GE may send you a replacement magnetron. GE Customer Service is here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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check the diode and the cap they like to go bad.good luck

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