Question about LG LMV1680ST Microwave Oven

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LG fan comes on unexpectedly

The fan randomly comes on when the microwave is not in use and the touch pad doesn't work for the fan. The fan will come on and not be able to be turned off by the touch pad. The fan is not controllable. It goes on all by itself even when the microwave isn't in use.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: LG Microwave Oven LMV2053SW

That's common - it's a problem on your control panel. We regularly repair these control panels for only $32.50 nationwide. For critical safety info & detailed disassembly info, see our link in our FixYa listing here: http://tinyurl.com/yzjozk Let me know if you need further help. I appreciate your kind rating!

Posted on Jan 28, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: LG microwave oven

It's usually a bad door switch or a broken door switch mount. Once in a while it's due to a board problem. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Posted on Jun 15, 2007

ginko
  • 19396 Answers

SOURCE: LG microwave not heating

If there is no power at all check thermal cutoff and control board.

Posted on Apr 27, 2009

  • 4 Answers

SOURCE: LMVM1935SB - Over the Range LG - fan keeps coming on, beeping

The fan will come on if you are cooking below and the area gets hot.... is this when it happens? Sometimes random beep could be a power blip... not long enough for a reset of all things electrical

Posted on Sep 21, 2009

  • 4 Answers

SOURCE: Touch pad doesn't work LMVM1945SB Microwave

that would be for a technician only........ electronic parts of that type are not generally self repair nor readily available

Posted on Sep 21, 2009

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My LG intellowave microwave's touch pad/control lights is coming on and I can set the time to microwave but the on and off touchpad doesn't want to work


The touch pad switch is faulty. You have to replace it
If you wish to get some details; check the site linked here. Pull up older posts.
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Our lg stainless steel overthe range microwave oven will not start. When pressing start only says power 100


The touch pad could be the problem. Touch pads are notorious for going bade. the door interlock switches could also be a problem. Check to see if all the pads work if they do it could be just the start pad that is bad.

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Unfortunately, if you are having problems with a touch pad you will probably have to replace either the touch pad itself, if you can get it or the whole control board and touch pad as a unit which normally ends up running as much as a new microwave. I would check your warranty and see if it still is covered and proceed that direction.

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Microwave Buttons Don't Work
Touchpad and Control Panel


If the microwave buttons don't work the touchpad and control panel assembly are probably defective.
Touchpad


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Touch pad doesn't work LMVM1945SB Microwave


that would be for a technician only........ electronic parts of that type are not generally self repair nor readily available

Sep 20, 2009 | LG LMVM1935 Convection/Microwave Oven

1 Answer

LMVM1935SB - Over the Range LG - fan keeps coming on, beeping


The fan will come on if you are cooking below and the area gets hot.... is this when it happens? Sometimes random beep could be a power blip... not long enough for a reset of all things electrical

Apr 19, 2009 | LG LMVM1935 Convection/Microwave Oven

1 Answer

I have an LG LMVH1750ST microwave convection oven. When I activate the fan for cooking purposes and then try to turn off, it does not respond. I have to pull electrical plug and reprogram for one minute....


From the owner's manual under OPERATION "VENT FAN":

"If the temperature from the range or cooktop below the oven gets too hot, the vent fan in the vent hood will automatically turn on at the 4-Speed setting to protect the oven. When this occurs, the VENT ON/OFF pad will not turn the fan off."

You should check your "vent fan auto time set" setting.

Here's one thing to try to set it to turn off after 10 minutes:

Touch the Vent ON/OFF pad, then touch the "5-SPEED VENT" pad until "level 4" appears in the display, then touch "AUTO TIME SET" the desired number of times.

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

Jun 19, 2008 | LG Microwave Ovens

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