Question about GE JVM3660 Microwave Oven

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GE JVM3660 microwave makes awful buzzing sound when the door is opened, night light is turned on, or hood fan is turned on. Also panel backlight goes dim when any of the previously mentioned actions are attempted. I'm guessing this is a power supply issue. This is the first problem I've had with the unit. It was built in 2001.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: when I open my microwave door, it starts running

.
In most cases, it's not actually cooking, but instead the fan, turtable and light may be on. Yet it does need attention.

What this usually means is that you have a shorted door switch or a bad door switch mount.

It's easy to tell if it's actually cooking, just place a cup of water inside and see if it heats.

If so, that could mean a stuck relay on the control board. If so, we repair these for customers nationwide with our guaranteed $39.95 service. Far less than a new board.

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, 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're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Nov 26, 2007

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SOURCE: G.E. Spacemaker XL1800- Loud constant buzzing noise. Help

My microwave was totally dead. Things I discovered: 1) There is an easily replacable fuse accessed by taking off the top front vent cover (two screws on top, gently massage off) and then the inside plastic grill. UNPLUG before doing this! 2) Pop off two wires on either end of fuse holder for safety. Then pop out fuse and replace. For more extensive help, there is an evelope with a wiring diagram inside the case on the inside wall! Very helpful when diagnosing the surface lamp problem (I forgot to plug the ballast back in when I closed up the bottom).

Posted on May 15, 2008

MicrowaveSvc
  • 9085 Answers

SOURCE: GE Advantium 120 Microwave fan stays on, off only when door open

Looking at the schematic in the service manual here, I would say relay RY6 on the small sub PCB (relay board) has shorted contacts.

That's the relay that runs both the fan and turntable.

It's possible that it may be a bad connection or driving component on that board, but in my experience, it's virtually always a stuck relay.

The part number on the relay as shown in the photo is hard to read, but it looks like "OJ-SH-112LM".

I should have one of these or I can point you to one if you want to contact me with the exact number.

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

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

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

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Posted on Jan 31, 2009

MicrowaveSvc
  • 9085 Answers

SOURCE: GE XL 1800 microwave light and fan operate but no heat

With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron, or a loose and possibly corroded connection on the magnetron's terminal.

The diode is a fairly cheap fix, and your magnetron is still under the part warranty, but you would have to pay labor.

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.

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.

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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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)


http://www.gallawa.com/microtech/mag_test.html

If it's within the magnetron portion of the warranty (5-9 years) but out of the original full warranty (1 year), G.E. will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If it's within the mag warranty, G.E. should send you the magnetron to do it yourself. Call them at 888-239-6832 with your model, serial, and manufacturing date.


If nothing else, you can save about $50-75 if you remove it from the wall and take it to a GE-authorized servicer.

You can find a GE-authorized servicer by calling GE Appliance Service at 1-800-848-7620 or here.


Accessing some components for testing and possible replacement will require you to remove the oven from the wall.

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.

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

Posted on Mar 02, 2009

MicrowaveSvc
  • 9085 Answers

SOURCE: GE Profile Spacemaker XL 1800;

We see (and repair) this a lot. The problem is electrolytic capacitor that fails on the control circuit board, which we regularly repair nationwide by mail for $39.95 postpaid with a one-year repair guarantee.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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

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Posted on Nov 22, 2010

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1 Answer

With the door closed, the oven makes a buzzing sound. If I try to microwave something, the interior light lights, the turntable turns, the normal fan sounds while the buzzing sound continues. No heat is...


You can possibly have a bad diode and or magnetron. When working on microwaves you have to be very cautious of what you are touching there is a capacitor inside that stores a voltage and can cause physical harm if not discharged.

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Why does the fan and turn table run when door is opened - ge microwave


I'd be AWFULLY NERVOUS about that - you don't know if the magnetron is also generating microwaves. If it IS, it can give you cataracts and/or blind you.

Aug 12, 2014 | GE Countertop Microwave Oven

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My ge xl1800 has 50 volts at the fan when the fan switch is off. it hums because of the low voltage. it works fine when the fan switch is turned on. the fan cap checks out fine


If you have had trouble with the cooktop lights recently, or if you get a hum or buzz in the area of the control panel assembly when you open the door, either indicates that you need circuit board repair. More details here.

Jan 30, 2013 | GE Spacemaker JVM1640SJ Microwave Oven

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Vent fan will not turn on.Display keeps showing vent fan off


Did this occur after a failure of your cooktop lights?

Or is there is buzzing noise present when the oven is not operating, or when the door is opened?

If so, then the problem is on the control panel, which can be repaired economically.

There is a a YouTube video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

The lights can can be inoperable or stuck on or stuck in "night light" mode. Sometimes this will similarly affect the fan operation or inside light, too.


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

Jan 16, 2013 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave stopped heating food, but fan , clock all work


Since you didn't mention the model number, I have to be kind of general.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

If it's quieter than usual (like the fan is not coming on) then it's likely a bad door switch or door switch mount or possibly a bad relay or connection no the control board, which we repair.

If it's louder than usual, that's usually a problem in one of the high voltage parts.

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

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.

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 find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

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

Sep 30, 2011 | GE JVM3660 Microwave Oven

1 Answer

Buzzing sound on all functions, including when light is turned on;fan vent not opening when fan turned on; not heating. is this a short/malfunction of control board?


sounds like a control/display board issue but if you microwave has a noise filter board (fuse is mounted on it) it could be that

Feb 04, 2010 | GE JVM1860 Microwave Oven

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1800 XL JVM1860BD - won't work


It sounds like your controller may be failing. Or it could be an electrical line problem. Any other electrical itmes giving you trouble? Has anyone measured the voltage level of your power line? It should be around 110-125 volts AC. If it's significantly lower or higher, you may have a bad connection in your breaker panel or in the wiring leading to the home.

Aug 14, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

NIGHTLIGHT WON'T WORK BUT SURFACE LIGHT WILL


This is a problem with the control panel assembly, which we repair nationwide for $39.95. This is most often caused by the filaments shorting when the bulb blows, or by not disconnecting the microwave from the power line when removing or installing a bulb. Full information on our service is available at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Aug 09, 2007 | GE JVM3660 Microwave Oven

1 Answer

Microwave works with door open


If the top is open, the upper door switch should be open and the high voltage section should not be energized. That's the way it's *supposed* to work. But that buzzing is worrysome! Does the turntable turn during this condition? Does the inside light come on? How about the fan? If not, then I would doubt that it's cooking. If so, some models will do this. It's not uncommon to notice that the fan and light will try to come on for a split second when you shut the door. This would not indicate a problem. It has to do with the timing of the door switches and a replay on the board. If it's still under full warranty, it wouldn't hurt to call a GE-authorized servicer.

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