Question about GE Spacemaker JVM1640SJ Microwave Oven

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Running but off

The microwave is appears off but sounds as if it is running and it is getting warm. It stops when the door is open. Also the the control panel does nothing.

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  • mci0000 Jan 12, 2008

    I can not find a magnetron relay on any parts list...Also everything I read says if it was the magnetron it would not heat up...



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Defective relay switch to magnetron need to replace new .

Posted on Jan 12, 2008


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1 Answer

Why does my microwave keep running/heating until I open the door? what can i do about it?

Sounds like a problem with the control panel. Further diagnostic testing would be required, however, as there can be other causes.

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Microwave keeps running with door open

I'd say the door interlock switch has failed, and supplies a connection when it should not. Microwave ovens can be dangerous to anyone poking around inside, even when unplugged, so get a quote from a service tech. You might find that parts+labour is almost as much as a new one.

Microwave radiation being released through an open door is also a hazard, as it is known to cause eye cataracts, so don't get near if the oven does this.

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Kenmore 401.80083700 won't turn off

It is one of two things, a defective door switch, or the keypad control board has failed.

Apr 18, 2012 | Kenmore 68361 Microwave Oven

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Kenmore elite microwave 721.80833 stops cooking intermittently

Check the door switches if one is bad it may think the door is being opened and stop the unit from running. If it is from a bad connection it will get worse as it gets hotter while running.

Oct 04, 2017 | Kenmore 80809 Microwave Oven

1 Answer

The microwave will not turn off.

it sounds lioke the relay is stuck in side on the control board
the one that has the display on it need to replace are service it

Mar 27, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer


I can help solve this fiasco , opening the unit while its running to stop it is not good to do because it will wear the door switches due to the load of power the unit uses while running the switches are not made to cycle the unit.
2nd there is radiation in the unit and around the unit while running so you should not reach in inside the unit immediately when stopped , give it a few seconds. Some commercial microwaves have an un-safe level of radiation 20+ feet away from the unit.
Most likely why they always get the order wrong.
Hope this helps.


Jan 07, 2009 | LG LRMM1430 Microwave Oven

1 Answer

GE Spacemaker xl1800

A simple test is to place a piece of bread in the microwave ( it heats up very fast) and then if your microwave was actually ON and generating RF, the bread would get hot very fast.. If it remains cool then only the fan is on. It appears that you may have a faulty door switch thou because once you open the door, your microwave should be off..

Are you sure the VENT is not on? That blower will operate regardless of the door open or closed so you must switch it OFF.

Sep 18, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave buzzing and hot when not in use

The brand and model number can help us pinpoint it, but it sounds as though it is cooking.

It also sounds like the cooling fan is not running durng this error condition, which could overheat and destroy the magnetron.

I would suspect a bad door switch or door switch mount, or possibly a stuck relay on the control circuit board.

Please reply back with your brand and model so we can help further. Thanks.

Dec 04, 2007 | Microwave Ovens

1 Answer

Microwave works with the door open

The top door switch is almost certainly defective or loose. Most likely the latter, and possibly due to a loose or broken mount. Chances are that only the fan and light are on, but it's not wise to take chances with microwave energy, whuch can cause burns and fire. One way to possibly test this theory is to pull up gently on the door and see if it stops doing it. But that's not a foolproof test. A broken or loose mount can be caused by inadequate plastic or improper assembly techniques during manufacturing, by slamming the door, or other physical damage. Bad door switches are usually caused by opening the door while it's cooking instead of hitting the STOP KEY first. I have a helpful text file on door switches with safety tips that will help you. You can find it by searching on (not Google) for microwave safety.txt Good luck and be safe!

Nov 11, 2006 | GE JE1640WA/GA Microwave Oven

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