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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
UPC 048231365819

What People Are Saying

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View LW1212ER Product Support

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Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

My window frames width is exactly 21 and 1/2 inches. Would this unit and the installation kit fit my window?

Asked by: Snus
The LG 12,000 BTU Window Air Conditioner with remote, Model # LW1212ER has a width of 23 5/8" which is already much wider than your width of 21 1/2" so it will not fit...^IFV
Answered by: LGJoel
Date published: 2017-04-24

How does one replace the heating element in the model LW1212hr?

Asked by: Gerald57
The only instructions available for replacing the heating element in the LG 12,000 BTU Heat/cool Window Air Conditioner with remote, Model # LW1212HR would be from its' service manual. You can contact our Support Center, (800) 243-0000 to inquire about if is something that you can order from them or it it is only available to LG Authorized Service Technicians or LG Authorized Service Centers...^IFV
Answered by: LGJoel
Date published: 2016-11-21

The clean filter light has been on for a few days and the filter is clean. We cleaned it and placed it back in. We turned it off to see if the light would reset and nothing. How can I fix this or what am I doing wrong? 

Asked by: Daisyr1
This flashing red indicator light is a normal operation for certain models. On some newer models, the POWER INDICATOR will begin to flash when it is time for the air conditioner filter to be cleaned. It is possible to reset this indicator light by unplugging the unit for approximately 3 minutes, and then restoring power to the system.
Answered by: NeilE
Date published: 2016-07-19

How can I reset it , it always goes off and works on its own ? It takes too long to go on ?

Asked by: Tee623
We regret the trouble you have experienced with this air conditioner. Is this A/C unit in the COOL mode or ENERGY SAVER mode? Is the TIMER set on the unit? Please contact our Customer Interactive Center at 800-243-0000 to troubleshoot this matter.
Answered by: NeilE
Date published: 2016-06-09

I want to turn my air-conditioned to heat using my remote 

Asked by: Lucy hoog
Our offices, in the United States, do not have product information for South Africa. In order to obtain such information, it is recommended to check our subsidiary’s website, at
Answered by: NeilE
Date published: 2016-05-17

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
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