Question about Microwave Ovens

1 Answer

LG LMVM2055SB over the range microwave keys not working

Over the range LG LMVM2055SB microwave keys are not responding. I turned the electrical power off/on, pressed the start-lock more than 1min, microwave does not start. Only keys responding are number keys 1 & 2. The vent fan speed key used to respond, now it works only upto speed 3.

This seems to be happening after our latest cleaning. After cleaning, it worked OK once, then displayed locked. The locked sign went away. But now, no matter, what we do, we cannot start this microwave.

This is about 2 years old.

Thank you.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Microwave Ovens Master
  • 8,803 Answers
Re: LG LMVM2055SB over the range microwave keys not...

Is it possible someone may have sprayed cleaner directly onto the keypad area?

This causes moisture to get into the keypad and sometimes onto the control board.

This could mean that they control panel frame with keypad (membrane switch) would need to be replaced.

Can you give more details on the cleaning?

Posted on Nov 18, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Having an issue with the keypad - not responding

I would contact Samsung, they seem to be aware of the issue with the control panel failing on there otr model and are replacing them free of charge under there "epidemic warranty"

May 06, 2013 | Samsung 1.8 Cu. Ft. Over-the-Range...

1 Answer

Lg lmlv2055sb just stopped working

6 years may be the point where the repair could cost more than a new unit----Call a local shop to see what it costs to look at the unit and if possible get a ballpark estimate---then weigh repair versus replacement.

Dec 03, 2012 | LG Microwave Ovens

1 Answer

My LG 2075 microwave touch panel stopped responding. After unplugging for the night, it now flashes locked and does not respond to any of the keys.

The touchpad is bad most likely. You can go to and they will have the part. The part will come with detailed instructions for installation.

Feb 15, 2011 | LG LMVM2075 Microwave Oven

1 Answer

Microwave Buttons Stuck

You have a bad control panel contact LG for a new panel.

Jan 24, 2010 | LG LMV1630 Convection/Microwave Oven

1 Answer

I have the LG 1433ss microwave, my turntable stops turning. Where do I find an expert in canada to help me fix it? Can I fix it myself?

I suggest you go to and use their troubleshooter. If you can use a screw driver, you can probably fis this problem. It might be as simple as checking the electric plug on the motor.

I hope this helps you.


Sep 25, 2009 | LG Over-the-Range Microwave

1 Answer

66993 pizza oven microwave oven combo pizza oven not heating error code f1 microwave part works

Hello, please use the chart to determine which stove you have. You will have to look at the model number. The first 3 numbers will be the series on the chart. In most cases an F1 error would require replacement of the electronic control. This part is commonly refered to as an EOC or ERC. However this type of repair is usually reserved for repair specialists.

KENMORE Range/Stove/Oven Fault Codes – 362 Series (General Electric)
F1 = Stuck Touch Pad Key - Replace Electronic Range Control (ERC).

KENMORE - 911 Series (General Electric/Roper)
F0-F1-FF = Failed transistor in Electronic Range Control (ERC).

KENMORE Range/Stove/Oven Fault Codes- 665 Series (Whirlpool)
F1-E0 EPROM Error - Electronic Range Control (ERC).
F1-E1 EPROM Error - Electronic Range Control (ERC).
F1-E2 U/L ERC Errors - Electronic Range Control (ERC).
F1-E3 Fuel Type Fail

Kill power 30 seconds-Cancel-Start/Enter-5 seconds-Should see “E” for electric-
“9” for gas-If code changes again-replace Electronic Range Control (ERC).

KENMORE - 790 Series Electronic Oven Control (Frigidaire)
F1 = Shorted Touch Pad = Electronic Range Control (EOC) Internal check sum error.
Runaway Temp = Replace Electronic Oven Control (EOC).

Kill power 30 seconds - if error returns - replace Electronic Oven Control (EOC).


Jul 20, 2009 | Kenmore 63662 / 63664 / 63669 Microwave...

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

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

1,746 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8803 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Barrett Palumbo
Barrett Palumbo

Level 2 Expert

1772 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides