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12,000 BTU Window Air Conditioner with remote

  • LW1212ER

Key Features

  • 3 Cooling & Fan Speeds with Auto Cool
  • 4-way air direction
  • Power Failure Auto Restart
  • Remote Control
BTU Performance 12,000
EER 10.8
Dehumid. (Pts/Hr) 3.3
Dry Air Flow (CFM) 330
dBA Level (Indoor / Outdoor) 52 / 60
Est. Cooling Area (Sq. Ft.) 550
Product (WxHxD) 23 5/8" x 15" x 22 1/6"
Shipping (WxHxD) 27 5/32" x 18 7/16" x 23 1/2"
Net Weight (lbs.) 81
Shipping Weight (lbs.) 87
Thermostat Control Thermistor
Air Deflection 4-Way
Energy Saver Function Yes
Fan Speed: Cooling 3
Fan Only Speed 3
Remote Control Yes
Compressor Rotary
Indoor Fan Type Turbo
Type Air Discharge Top
Outdoor Vent / Exhaust Yes
Chassis Type Slide In-Out
Available Colors White
Voltage / 60 Hz 115
Watts 1,110
Rated Amps 10.2

What People Are Saying

Rated 5 out of 5 by from Love all the features I bought this LG air conditioner after reviewing it in consumer reports. It cool quickly and efficiently, it has a dry mode a a drain to de-humidify your room. The fan is powerful and has the ability to cool a large area. I would definitely recommend this to others and purchase it again. I noticed it sold out early in the season from the location I purchased it from.
Date published: 2015-07-24
Rated 5 out of 5 by from HIGH QUALITY AIR CONDITIONER This is by far the best air conditioner I've ever bought. The overall appearance is modern looking and adds some style to your room. The touch pads are nice because all you have to do is lightly push on them. You don't have to push down hard or repeatedly touch it for it to work the way you want it to. I always use the "energy saver." In addition to it saving energy, it really does make a difference on my electric bill. A lower bill works out fine for me. The remote control makes things a lot easier for us couch potatoes. It amazes me how quiet this air conditioner is. We don't have to turn up the TV to hear it when the air conditioner is on. As far as cooling, this baby really pulls it's weight. I have it in my living room. Not only does it cool that room, it cools my dining room, kitchen, entrance way and hallway! I would recommend this to anyone and everyone. Finally, something that isn't too good to be true!
Date published: 2014-08-19
Rated 5 out of 5 by from LG 12,000 BTU Air Conditioner I really like this unit alot because it's very easy to put it together right out of the box... Starts up nicely and it's very quiet when it's on... The only thing I didn't like about this unit is that the front grill panel it's very hard to snap the right bottom conner on where the wire sticks out from it always comes undone when putting it back on which LG Products could of made the better and easier to put it back on folks...other then that it keeps my second floor loft area nice and cool when it's really hot and humid outside... I also like the remote control very small and easy to use.. Will buy another LG Product again in my books
Date published: 2014-07-14
Rated 4 out of 5 by from Installation could have been better designed. I am happy with the functioning of this unit. I was disappointed with the instructions and the actual process of the installation. The screws provided were for the most part hard to fit. Seems to me more care could have been used in designing the installation process. Like self tapping sheet metal screws.The video makes it look easy, but it took me almost three hours to install. (I am a building contractor.) The printed directions were too small to read easily and were not easy to comprehend.
Date published: 2014-06-04
Rated 5 out of 5 by from Excellent product I purchased two of these window units in April of 2012. I live in the heat and humidity of Florida, so they have gotten a good workout over the past two summers. I need to replace my central system, but because these work so well, I haven't been in any rush. My home is 1,388 SF and the two units cool it easily to 75 degrees. Once I turn them on in the spring, they are never turned off until fall arrives. They are running now at the end of the second summer. Not only do they do a great job, but my utility bill is about $50 less each month than it was with the central unit. The only negative I can think of is that some would consider them a little on the noisy side. I sleep with one right near my head. At first it bothered me, but soon became "white noise" and I don't even notice it anymore! I highly recommend!
Date published: 2013-10-05
Rated 5 out of 5 by from Great Product! I was very surprised at how powerful this system is. It cools off my living room, kitchen and hallway with no problem. This was a very hot summer and we did not feel it inside our home thanks to the LG air conditioner. The remote is an added bonus! I will be buying a second one for our home.
Date published: 2013-09-05
Rated 4 out of 5 by from Overall This air conditioner works fine, but we needed to have it fixed as it arrived broken.
Date published: 2013-09-03
Rated 5 out of 5 by from excellent features good value unit cools very quickly, very usable features, quiet.
Date published: 2013-07-19
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Product Support


Ask your questions. Share your answers.

Stopped blowing cold air. Most common part needed for repair?

Hello, We purchased this item new about 2yrs ago and it has recently stopped blowing cold air. It still turns on and blows, just not cold. As I live in South FL this is a problem that I would like to fix quickly. Which part/parts are commonly the culprit in this event? I need to get this thing repaired ASAP. I appreciate the help in advance. Thank you.
Asked by: Anonymous
You may want to try troubleshooting the LG 12,000 BTU Window Air Conditioner with remote, Model # LW1212ER. Does the air conditioner cool at night and not during the day? If it does, then it is capable of cooling. It's performance can be greatly reduced on exceptionally hot days. You can try unplugging the unit for 30 seconds and while it is unplugged, check the Fresh Air Damper to make sure it is open and then close it. Use a stop watch to time the 30 seconds because the test will not work if the unit is not unplugged for 30 seconds. Plug the unit back in then turn it back on and set it on the COOL mode, set the temperature at its' lowest setting and the fan speed on high. You should hear the compressor turn on. It may take about 30 seconds but when it does turn on, put your hand in front of the discharge vents to see if it is cooling. If the outdoor temperature is above 95°C then you might want to try leaving the unit running during the day and raise the temperature up a little so it can maintain a more stable temperature so that when you decrease the temperature, it will cool more efficiently. Check to make sure that the unit is not installed in direct sunlight as that will result in reduced performance too. The sunlight hitting on the case will get it very hot and it will have difficulty discharging the heat. YOu will need to put an awning or find a way to shade the unit to keep the direct sunlight off it. If you have never had the unit serviced since you have had it, you should. Maintenance is the single most important thing you can do to make sure that the unit will function at peak performance. Clean the Air Filter and have the outside coils cleaned. Often, dust, pollen debris and other environmental particulates will build up on the coils and prevent proper cooling. If you're careful, you can try using a garden hose and a bristled brush to clean the coils or check with your local hardware store for an air conditioner coil cleaner. If none of the above troubleshooting tips worked for you, the unit may need a repair service...^IFV
Answered by: LGJoel
Date published: 2015-08-13

can i buy replacement parts for ac

Asked by: flounder
Accessories can be obtained through our parts distributor, MCM Electronics. Their contact number, for placing orders, is 800-824-9491. You can also use their website, at
Answered by: NeilE
Date published: 2015-08-07

instructions & Settings for LW1212er

Bought this Air Cond. used E-mail them if possible!!
Asked by: Chauffeur
Hi Chauffer, thank you for your inquiry. The owner's manual can easily be found on the LG site for the LG 12,000 BTU Window Air Conditioner with remote, Model # LW1212ER at You can just download the owner's manual and either save the pdf file to your computer or print it out...^IFV
Answered by: LGJoel
Date published: 2015-08-29

I can't figure out how to install the frame guides on the chassis - can you help?

Asked by: LyndaM
We appreciate your interest in this air conditioner. There are 2 small holes on the underside of the cabinet for use with these Frame Guide pieces. The open side of the device should be facing the COLD AIR RETURN. If there are additional questions about this device or its accessories, please contact our Customer Interactive Center at 800-243-0000.
Answered by: NeilE
Date published: 2014-08-26

It cut of by it self

It will run for about 10 mins and then it will cut off. Is the compress gone bad? Have had it for 2 years
Asked by: 83dowling
We regret the trouble you have experienced with this air conditioner. Check the settings on the unit. If the ENERGY SAVER mode is active, then the deactivation may be normal operation. If this does not appear to be the case, please contact our Customer Interactive Center at 800-243-0000 for additional troubleshooting steps.
Answered by: NeilE
Date published: 2014-08-05

window too large for installation kit

To whom it may concern, I was wanting to know how to install the 12,000 btu Lg window unit in a window that is about 49 in wide and about 23 in tall? The window is also a metal frame, so it would not be possible to use any screws. Thank you for your time
Asked by: kimzy
We regret the trouble you have experienced with the installation of this air conditioner. For proper installation and security of the product, screws have to be used. We cannot provide recommendations for any other installation method.
Answered by: NeilE
Date published: 2014-05-01

What size outdoor air cover should i get

Asked by: aliceq
That is a good question. Unfortunately, LG does not recommend any specific type of outdoor air cover. Whatever you choose to cover the air conditioner with, just be sure that all of the vents on the air conditioner are covered so that no bugs or debris get into the air conditioner. If you have any additional questions or concerns, you may contact our Customer Interactive Center at 800-243-0000.
Answered by: GlennM
Date published: 2013-10-04

on LW1012 ER air conditioner, what is meant by: Chassis type Top Down

Asked by: thehankster
The Chassis Type is: Slide In-Out Chassis is a slide in case that makes the installation of the unit much easier. Please refer to the manual for illustrations.
Answered by: Nadine
Date published: 2013-07-23
  • 2015-10-06T19:47CST
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