Question about GE JVM1650 1000 Watts Microwave Oven

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Fan comes on hwne open door

Fan or its actually running when you open door after its ran. Not all the time but most the time, just started doing it today..what to do?

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Re: Fan comes on hwne open door

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

Door switches are most often damaged by opening the door while it's cooking (instead of pressing Stop / Clear first) or food
/ grease debris in the switch.

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:

You can find helpful exploded view diagrams and order parts by entering your full model number here:

Posted on Nov 05, 2007

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The fan runs when the door is open just like it does when it's running. When the door is shut and not running the fan is off. I opend/shut the door 3 times firmly like the GE rep. told me to but it still...


Disconnect the oven from power and allow cooling down. Most GE have temperature controlled fan system.

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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..

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What's happening is you are activating one door switch a little before the other, and that is causing your light, fan, and turntable to come on. The plastic parts are not perfectly rigid, so they flex a little when you press the button, and that causes the lag to be more apparent. Even if you press the door open faster and look really close, you may notice the light, fan, and turntable coming on for a split second. That's perfectly normal. The relay on the control board must also be turned on before it will actually be cooking.

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