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18,000 BTU Window Air Conditioner with remote

  • LW1812ER

EER 10.7/10.7
dBA Level (Indoor / Outdoor) 62 / 67
Est. Cooling Area (Sq. Ft.) 1000
Thermostat Control Thermistor
Air Deflection 4-Way
Energy Saver Function Yes
Fan Speed: Cooling 3
Fan Only Speed 3
Remote Control Yes
Compressor Rotary
Type Air Discharge Top
Outdoor Vent / Exhaust Yes
Chassis Type Slide In-Out
Available Colors White
Voltage / 60 Hz 208/230

What People Are Saying

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View LW1812ER 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.

replace discontinued (LW1810HR)

What is the new replacement /equivalent model for my discontinued model LW1810HR)? Thanks.
Asked by: flw123
We appreciate your interest in this air conditioner. The current model of this capacity is the LW1815HR.
Answered by: NeilE
Date published: 2015-09-02

Why has my fan stopped blowing cool air?

After the unit runs and cools just fine for a few minutes, the unit stops blowing cool air. The unit is still running and the temperature gets lower on the display. When I turn the unit off the compressor continues to run. I unplug the unit from the wall and after a few minutes, the compressor finally shuts off. After leaving it unplugged for a few minutes, I plug it back in and it works fine for a little while and then it stops blowing cool air out again.
Asked by: TrinaMeredith
Hi TrinaMeredith, we regret to read that your LG 18,000 BTU Window Air Conditioner with remote, Model # LW1812ER may be operating erratically. When you set the desired temperature on the Air conditioner, it might take the Air Conditioner about 30 minutes for it to lower the temperature by 2°F and then another 30 minutes to drop another 2°F. If the Air Conditioner is underpowered, meaning if it is too small a unit for the room size, the compressor will keep running and the room never cools. These explanations may not apply to your Air Conditioner, but those are some causes for the Air Conditioner's compressor running as you have described. It may be that you may need to get a repair service on the Air Conditioner. Try setting the temperature at it's lowest setting and turn the fan to its highest setting and the air should be cold. If not, that would indicate the unit needs to be serviced...^IFV
Answered by: LGJoel
Date published: 2015-06-17

How can I reduce the fan speed?

Unit is very noisy. Even the lowest fan speed option is still too high. There is practically no difference between F1 and F2. How can I further reduce fan speed?
Asked by: Mlace
We regret your dissatisfaction with the operations of this air conditioner. There is no lower fan setting than the Low speed of the F1 setting.
Answered by: NeilE
Date published: 2014-03-12

why wont the heater blow out heat

the system LW1812HR only blows out cool air no heat comes out what would cause that, is it the element does it need to be changed
Asked by: sherrynew
It is difficult to determine the cause of the failure of the heating element without an inspection by a qualified service technician. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at
Answered by: NeilE
Date published: 2014-01-22

can you turn the energy saver on without remote control

I know how to turn on Energy Saver with remote can you turn it on from the control panel if so how.
Asked by: rewarren
There is no button on the control panel to turn on the Energy Saver. The Energy Saver feature can only be turned on with the remote control. If you have lost the remote, 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 The part number for the remote is 6711A20034D.
Answered by: Amanda
Date published: 2013-05-29

installing window unit through the wall

Model # LW1812HR-why can't this window unit be installed in the wall? would it affect functionality?
Asked by: homedepot
It would effect the airflow. Window units are not designed to be installed through the wall. Thank you for your question.
Answered by: Nadine
Date published: 2013-01-31

Can I use the "energy Saver" function with the heat? Or how does that work? Does the heat just stay on with no option to cut off?

Asked by: daphnedaniellem
I apologize, but no; the Energy Saver function is not compatible with the HEAT mode. This feature works directly with the Compressor / Sealed System of the unit. Since the heating portion of this unit is an electric heating element, it will not be directly associated with Energy Saver mode.
Answered by: NeilE
Date published: 2013-01-08

Does the heat strip go on and off while the fan runs continuously?

I've noticed that the heat comes on for about 40 seconds and the fan circulates the heat for those 40 seconds. Then there is no heat for about 3 minutes or so, but the fan keeps running and the air is cold. That seems to defeat the purpose if you get only 40 seconds of heat and 3 minutes of cold air. Shouldn't the air that is circulated be warm continuously?
Asked by: MoeNeigh
The heating element in this air conditioner has been designed to provide supplimental heat, and is not intended to be a primary or sole heat source. The heat supplied by this air conditioner is supposed to add its warm air to that which is in the room, and then circulate the warm air, without making it too hot, which could occur if the heating element was left on continuously. If you still believe the unit is not operating properly, then the unit may require service. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at
Answered by: NeilE
Date published: 2012-12-26
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