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17,500/18,000 BTU Window Air Conditioner with Remote

  • LW1812ERS

Key Features

  • 3 Cooling & Fan Speeds with Auto Cool
  • 4-Way Air Direction
  • Electronic Touch Controls with Remote
BTU Performance 17,500/18,000
EER 10.7/10.7
Dehumid. (Pts/Hr) 4.5
Dry Air Flow (CFM) 520
dBA Level (Indoor / Outdoor) 62 / 67
Est. Cooling Area (Sq. Ft.) 1000
Product (WxHxD) 26" x 16 27/32" x 26 27/32"
Shipping (WxHxD) 30 1/2" x 20 7/8" x 29"
Net Weight (lbs.) 108
Shipping Weight (lbs.) 123
Thermostat Control Thermistor
Air Deflection 4-Way
Energy Saver Function Yes
Fan Speed: Cooling 3
Fan Only Speed 3
Remote Control Yes
Programmable Timer 24Hr, On/Off
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 208/230
Watts 1,630/1,680
Rated Amps 8.1/7.6
Limited Warranty 1 Year Parts and Labor with 1 Year Compressor
UPC 048231365932

What People Are Saying

Rated 1 out of 5 by from Poor Quality This model did not last three years, it started making a terrible noise and vibrating awful around Sept. 2015, I thought it was the motor so I replaced it and that wasn't the problem it turned out to be the compressor which finally went completely out in May 2016. I purchased the unit from Wal Mart in May 2013. The only reason I bought another LG air conditioner is because I thought it would fit in the hole I took the other one out of, otherwise I would have never bought another one and I would never recommend anyone else buy one. anyone else buy one as long as I live.
Date published: 2016-06-12
Rated 5 out of 5 by from Great Air Conditioner Bought this air conditioner to replace a 14 year old unit that died. Has all the features I need, but especially like the Dehumidifier feature on this model as Florida summers are very humid. Would recommend this unit to someone who is in need of a new air conditioner.
Date published: 2012-09-17
Rated 5 out of 5 by from Keeping Cool in TN This window unit not only keeps the kitchen it's installed in cool, it cools down the adjoining dining room/office and living room very well (our floor plan is open so air circulates freely from room to room). I can set it on 'power save' or just use the 3 speed fan when I'm the only one home - that's a real money saver! It's a lot quieter than the portable unit we used last year and takes up no floor space, which I love. My husband and I installed it ourselves in a window that has a sill made in the late 1800s and the process was amazingly smooth. We are very satisfied customers.
Date published: 2012-08-17
Date published: 2012-08-14
Rated 5 out of 5 by from Ease of use and features make it a good ac unit. The energy Saving Mode is what really impressed me. I am all about saving energy and the LG 18000 btu ac unit does just that.
Date published: 2012-08-11
Rated 4 out of 5 by from Very quiet and fits my purpose This unit cools down very quickly upon turning it on. It removes quite a great deal of moisture from the house but the drain plug is very short so that the unit drips all over the place close to the house. I will try to attach an extension hose to send the water out into flower bed and try to keep it away from my house and deck. It is a very quiet machine when running. I like the powersave option. I would purchase another unit in the future if needed.
Date published: 2012-06-06
Rated 4 out of 5 by from Great wall unit for the price My central air condition broke last summer and I live in a mobile home. When summer hits and its 100 degrees plus living in a tin can really is miserable. Thank goodness for LG and their wall air conditioners I was able to live inside my home and not melt.
Date published: 2012-05-22
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We're here to support you with our product.

View LW1812ERS Product Support

Contact us for any support inquiries.


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

Where can I buy a remote control for this unit. I lost mine when I moved.

Asked by: mikepr1
Our offices, in the United States, do not have product information for Puerto Rico. In order to obtain such information, it is recommended to check our subsidiary’s website, at, or by phone at 001-800-510-9564.
Answered by: NeilE
Date published: 2017-08-31

I bought the lg 1800 btu air conditioner, what dose the plug wireing need to be, i wire the plug to a 110 outlet the unit will turn on but barely blows and wont get cold then wired the plug to a 220 and it wont even turn on. 

Asked by: commando
We regret the trouble you have experienced with this air conditioner. According to the information on page 11 of the owner’s manual, this model is designed for use with a 230/208 Volt outlet, on a dedicated circuit, connected to a minimum of a 20A fuse. All wiring should be made in accordance with local electrical codes and regulations. If this does not help the matter, please contact our Customer Interactive Center at 800-243-0000 for additional assistance.
Answered by: NeilE
Date published: 2017-06-28

How do I change the temperature control on my ac it says 29 I believe thats the tomer only goes to 30

Asked by: Gilliam 69
We regret the trouble you have experienced with this air conditioner. It is recommended to check for any indicator lights on the display that might denote the TIMER being active. The TIMER function is designed to increase the temperature setting by 2 degrees, each half hour, over the course of an hour. The TEMPERATURE CONTROL is set to range between 16 – 30 degrees if set to Celsius degrees. For additional assistance with this matter, please contact our Customer Interactive Center at 800-243-0000.
Answered by: NeilE
Date published: 2017-06-22

The clean filter light is on after cleaning the filter so how do I turn it off

Asked by: Tom4684
Its not a television..its the AC unit..same thing my light is on but no way to turn it off
Answered by: questionable
Date published: 2016-08-25

Is there a drip leg on my unit? Not seeing a whole in the bottom for h20 or condensation.

Asked by: To warm
We appreciate your interest in this air conditioner. A drain port is available on the back of the cabinet. Frequently it may be covered by a rubberized plug. It is not necessary to remove this plug, as any collected water can be used to improve the operational efficiency of the air conditioner.
Answered by: NeilE
Date published: 2016-08-05

My wall is 6inches wide and would not block any of the vents so why couldn't I install this unit in the wall?

Asked by: pally
We appreciate your interest and concern regarding this air conditioner. This particular 18,000 BTU air conditioner was designed specifically for a window installation. When a device is installed in a manner contrary to that for which it was designed, we cannot guarantee proper operation from the device. Such improper operations can lead to damage to the air conditioner which would not be covered under the manufacturer’s warranty, as the unit is not being used in the manner for which it was designed.
Answered by: NeilE
Date published: 2015-07-23

Does this AC breath air from the back or the sides

I know this unit is meant for window installation. But I would like to put it in the wall. I want to make sure I don't block anything that would overheat the unit.
Asked by: jaindesi
You are right, because of the way window ACs are vented (from the sides) they cannot be installed through the wall.
Answered by: Nadine
Date published: 2013-10-22

Is there an outside grill for the cabinet on the HW1812ERS air conditioner? There are slots for one but nothing in the carton and i'm ready to instal

Asked by: CoolOne
No; this product is not provided with an outside grille.
Answered by: NeilE
Date published: 2017-01-27
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