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GE Microwave turns itself on

GE Microwave JES1146BF001

Starts running all by itself. I have seen this caused in other brands by defective keypad (in fact at least one brand had a massive recall for this exact problem).

Does this sound like what is wrong with this GE?

Is there a recall? ir part available? $$$?

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  • Scooter1703 Jun 03, 2008

    Yeah, mine did this neat trick last night...running all by itself...Help! 6/2/08

  • stevericci Jan 23, 2009

    My GE Microwave (JES1142WMC01) turned itself on in the middle of the night and must have run for a while since I could feel the heat it was generating in my kitchen. The beeps woke me up as if someone was entering the time and pressing start...



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This is usually because the keypad is damaged or worn out, or control unit may be damaged.

BTW - Isn't this beyond the one-year warranty period? If so, it's not likely a recall will cover it.

We have *critical* safety, disassembly, and troubleshooting info at our site linked at our listing here on FixYa:

There should also be a very helpful "mini-manual" hidden inside the unit behind the control panel. It's very helpful when troubleshooting.

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

Or if you don't want to do ti yourself, we regularly repair these for customers nationwide for $39.95 plus parts.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Feb 15, 2008


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GE JES2150MRSA f3 code microwave turns on by itself,beeps out of control starts cooking by itself f3 is a control panel error

"F3" means you have a shorting membrane keypad.

Looking at the parts list for model JES2150MRSA, only the glass turntable and turntable support are listed, so it appears this is one of those unsupported "doorbuster" models.

If it's still in warranty, it can be exchanged. If not, it should be disposed of.

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GE JES2150MRSA  f3 code microwave turns on by itself,beeps out of control starts cooking by itself f3 is a control panel error

- "F3" means you have a shorting membrane keypad.

- Looking at the parts list for model JES2150MRSA, only the glass turntable and turntable support are listed, so it appears this is one of those unsupported "doorbuster" models.

- If it's still in warranty, it can be exchanged. If not, it should be disposed of.

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please review this and fix it. God bless you

  1. Interlock switchIf your microwave is turning itself on, the first thing to check is the interlock switch. This is usually the first thing to malfunction that could cause this issue. If the interlock switch is bad then it will need to be replaced.
  2. Main control boardIf your microwave is turning itself on and the interlock switch is still working, the probable cause is the main control board. If the control board is defective it will need to be replaced.

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It sounds as if you key pad is sticking. PF means that there is an input power problem but could be caused by the sticking keypad.. As far as the unit starting bu itself, the only thing that can cause that is the keypad.. Try running your fingers flat across the panel several times both vertically and horizontally and see if the pad malfunction clears. It will probably repeat in the future but you could get lucky and have a one time instance. The keypad itself is just a bit over $75.00 if it has failed. Good luck.

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First, do not leave this machine plugged in until it is serviced. If this is a KHMS155LSS, there is a very high probability that you have a keypad short. This defect can cause the machine to start on its own at ANYTIME, at night, while you are away, at work etc. Contact Whirlpool Customer Service and ask for Safety Dept immediately. They will most likely send A&E out to fix it. Although it will fix the problem, if the keypad fails again, the self start logic defect is still present. You should be under warranty if it is above model. I almost had a fire this past Monday, Labor Day, 9/7/09 when my machine self started at 3 AM with a package of bacon left in to thaw for the morning. What a somey mess. Chinese made garbage.

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Lights turn on and off, keypad is out of control, F3 Code appears in the display.

F3 on a GE / Hotpoint microwave means you have a shorted 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.

We regularly repair such control units for customers nationwide by mail in about a week or so with a one-year guarantee.

Feel free to contact me directly (and please remind me of your full model number) for pricing and 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

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F3 means a problem with the keypad. A bad keypad may be worn out due to age, damaged, or it may have gotten wet or otherwise contaminated. Moisture and contamination can be caused by not using the hood fan when boiling on the stove top, spraying of cleaners, by storing the microwave in an unheated garage or shed, or infestation. I warn my customers to never spray cleaner directly onto the microwave keypad, since the liquid can get inside and "lock up" or even ruin the keypad or controller. Apply an alcohol-based cleaner (such as the purple kind) to a cloth (paper towels can scratch) and gently wipe it off. I suggest to my customers that they NEVER use any ammonia-based cleaner (like the blue stuff) on a microwave, since the ammonia will crack and distort polycarbonate plastics. An exploded view and parts price list can be seen by entering your *entire* model number at the GE parts Web site:

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