I have a GE Spacesmaker model #JVM1440BH04 that came on by itself and can't be shut off unless the door is opened. It does not seem to be cooking since nothing heats up unless the cook start buttons are pushed. The turntable turns only in the cook mode.

Yes. Faulty door interlock switches.
Replace the door switches with the correct ones.

Your oven is cooking by itself, which can cause arcing and even a fire.

So until it's fixed, please leave it unplugged or leaver the door open.

You can e-mail me at [email protected] and include your full model number and FCC ID number from the tag in the cooking cavity.

I'll be happy to help you.

Your oven is cooking by itself, which can cause arcing and even a fire.

So until it's fixed, please leave it unplugged or leaver the door open.

You can e-mail me at [email protected] and include your full model number and FCC ID number from the tag in the cooking cavity.

I'll be happy to help you.

There probably is a bad micro switch that needs to be changed.

I would check the door switches for a faulty switch. If it were condensation on the control panel. I would think it would have dried out by now unless it has damaged the control board.

First you should determine whether it's cooking when it should not be, in this case anytime it is plugged in and the door is closed or open.

Do that by putting a cup of water in a microwave-safe container into the unplugged microwave, shutting the door, then plugging it for about a minute.

Then unplug the oven and check to see if the water is warmer.

If so, you have a shorted secondary relay on your microwave''s control circuit board, and we regularly repair such control units for customers nationwide by mail for $39.95 with a one-year guarantee.

Do that test again by putting the water in, leaving the door open, and plugging the oven in for about 30 seconds or so. If you get any arcing or buzzing or flashing, unplug it.

If it is not cooking, then you need to test further.

If it just seems to be "running" with the door shut, but it is not cooking (as shown in the above tests) then note whether the oven lamp, internal cooling fan and turntable are running when the door is shut, but when you open the door, the turntable and colling fan go off.

This should mean you have a shorted main relay on the board. We can fix that, too.

Differing symptoms would indicate a bad door switch or door switch mount.

Our info file on door switches is here.

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.



Also 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 here.

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

You have a shorting membrane keypad.

If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it running unattended.

Feel free to contact me directly (and please include your full model number from the tag in or on the unit) for a free estimate and free tips & do-it-yourself advice.

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

William E. Miller
[email protected]
http://www.microwavedisplay.com

Hi, the contacts in the micro switch or relay proberbly fused together. Do not open door if is still on unless you want to cook yourself

The problem appears, at least in part, to the door latch circuitry which cannot be serviced by the owner. If the unit is still in warranty, call GE customer care. If not, replacing the unit is your best bet. I just bought a new GE 1100 watt oven with great features for less than $100 If the door dosen't latch correctly, you could be exposed to dangerous microwave energy.

Ray

It may be a bad door switch, a loose door switch mount, or a problem on the control panel, such as a sticky relay.

I would suspect a sticky relay first, but the door switches should be checked.

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

If you need your control panel assembly (smart board) repaired, we do that for $39.95 nationwide.

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