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Energy Star Logo
3.5 | 22 Reviews

11,800 BTU 230v Through-the-Wall Air Conditioner

LG LT1236CER

Features

  • Cool down your desired space with this 11,800 BTU Air Conditioner
  • Stay comfortable with this LG Air Conditioner that cools up to 530 square feet
  • Trim Kit included to help you set up with ease
  • Make temperature adjustments and fan speed selection on the easy to use control panel or remote

Quick Specs

  • Type: Air Conditioner
  • Style: Wall Fit Air Conditioner
  • Width: 24"
  • Height: 14.40"
  • Depth: 20.09"
  • Energy Star Rated: Yes
  • Cooling Power: 12000 BTUs

See More

 
Image Feature

Maximum Cooling

LG window air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.

Image Feature

Maximum Usability

Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch.

Image Feature

3-in-1 Operation

Use cool mode for powerful cooling and dehumidifying on hot days. In fan mode, the fan circulates the air in the room. Dry mode is ideal for damp, rainy days.

Image Feature

Installation Made Easy

This unit comes with our simple and convenient installation kit, so you can set up your air conditioner with ease.

Maximum Cooling LG window air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.

Maximum Usability Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch.

3-in-1 Operation Use cool mode for powerful cooling and dehumidifying on hot days. In fan mode, the fan circulates the air in the room. Dry mode is ideal for damp, rainy days.

Installation Made Easy This unit comes with our simple and convenient installation kit, so you can set up your air conditioner with ease.

Features

  • Cool down your desired space with this 11,800 BTU Air Conditioner
  • Stay comfortable with this LG Air Conditioner that cools up to 530 square feet
  • Trim Kit included to help you set up with ease
  • Make temperature adjustments and fan speed selection on the easy to use control panel or remote
  • Reduce power consumption with the Energy Saver Function
  • Choose your perfect temp with high, mid and low modes for cooling and fan speed
  • The Clean Filter Alert lets you know when it's time to clean. Simply remove the filter to wash
  • 208 /230 Voltage allows for efficient cooling
Compressor
Compressor Rotary
Dimensions/Weight
Net Weight (lbs.) 82 lbs
Product Dimension (WxHxD) 240" x 14.41" x 209"
Shipping Dimension (WxHxD) 27.72" x 17.41" x 22.41"
Shipping Weight (lbs.) 91 lbs
Electrical Ratings
Rated Amps (Cooling) 5.5/5.0
Voltage / 60 Hz 208/230V
Watts (Cooling) 1, 080/1, 110
Features
Air Deflection 4-Way
Air Discharge Type Top Discharge
Air Filter Washable
Auto Restart Yes
Chassis Type Top Down
Energy Saver Function Yes
Fan Speed Cooling 3
Fan Speed Only 3
Filter Alarm Function Yes
Indoor Fan Type Turbo
Outdoor Vent / Exhaust Yes
Remote Control Yes
Thermostat Control Thermistor
Timer 24 Hr, On/Off
Materials/Finishes
Color White
Performance
BTU Performance 11, 800
BTU performance (Cooling) 11,500/11,800
CEER 10.5/10.5
dBA Level (Indoor / Outdoor) 59/65
Dehumid. (Pts/Hr) 3.9
Dry Air Flow (CFM) 265
EER 10.6
Est. Cooling Area (Sq. Ft.) 530
Summary
Type Through-the-Wall Air Conditioner
UPC Codes
UPC 048231379649
Warranty
Parts & Labor 1 Year Parts and Labor

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Wall Fit Air Conditioner

  • Dimensions

  • Width: 24"
  • Height: 14.40"
  • Depth: 20.09"

  • Features

  • Energy Star Rated: Yes

  • Cooling Capacity

  • Cooling Power: 12000 BTUs

Interactive Tour

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Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

3.5 out of 5

63% of reviewers recommend this product.

4 Stars

Customer service

LIZZIES CABIN 8/31/2024

The first one I purchased did not work when we plugged it in it made a terrible clanking sound would not blow cold air at all. We called for service but no one ever returned our calls apparently they could not find a tech in our area. But a call back would of been good. We ordered a second one returned the other to where we purchased it. But 2 weeks in Tennessee in August with no air was quite miserable for two older people. The second one has been in a week and is working great.
Originally posted on lg.com

Yes, I recommend this product

5 Stars

Love all the features

Cookie01 8/6/2024

Our LG air conditioner is great. Our downstairs is now always at a consistent temperature. The energy saver shuts the air conditioner off when the rooms hit the desired set temp then automatically goes back on when the rooms get warmer. My husband loves the remote control so he doesnt always have to get up go the the room where the air conditioner is change the setting. We know that now our rooms are ALWAYS at the temperature that we selected instead of us always going to our former air conditioner to fiddle with the controls.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
1 Stars

lemons

fooled twice 8/3/2024

after returning the first defective ac and getting charged for returned shipping i had the nerve to trust best buy to send me a lg ac defective free again 2nd one was defective also defective also . . I will never buy from best buy again and may not ever buy an lg again.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
3 Stars

Cool Noise

1Gene 7/4/2024

Got this installed and it seems noisy although it is cooling well. Also a plastic clip at the bottom of the filter cover is broken.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

STAY AWAY- HORRIBLE EXPERIENCE

ADJDADJD5 7/3/2024

I bought this 2 months ago and it no longer cools. This product is still under warranty Dealing with the company is just short of a nightmare. We have been unresolved for 2 weeks now. In that timeline- we had to wait for a service person to come out and declare it unfixable have the notes reviewed and approved by the engineering team wait for the presidential liaison to respond. All we are asking for is a refund or replace. Instead we have gotten a run around and no answers to our broken air conditioner.
Originally posted on lg.com

No, I do not recommend this product

5 Stars

Great LG wall air conditioner.

FS32 6/19/2024

Purchased LG wall Air conditioner model LT1236CER and it is working great with low noise and cool the place in short time. Very happy with item.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

Money and time lost

Alice Neuman 5/21/2024

A/C: I picked up my air conditioner from Home Depot today and even though the box was slightly damaged the unit seemed fine. However trying to fit it into a Keystone-brand sleeve was a disaster. Home Depots recommendation was way off this sleeve is a poor match if you care about a proper setup. I considered buying the LG AXSVA1 sleeve but customer said it was poor quality and unbelievably didnt properly fit LG air conditioners. The installation was a headache and took way too long. To make matters worse the unit is ridiculously loud on any setting other than fan mode with a high-pitched noise and vibrations that will drive you crazy. I called LGs service line and after a series of tests we ruled out installation and construction issues. Now Im stuck with a 100-pound paperweight and hoping the sleeve is to blame. Both the manufacturer and Home Depot need to step up their game with their recommendations and quality. Sleeve: The recommended Keystone sleeve is NOT compatible with the LG LT1236CER model which raises questions about LG and Home Depots recommendations. During installation it was a struggle to fit the LG into the sleeve even WITHOUT the around insulation strip and two 1 shims. The around insulation strips were tore out when inserting the AC into the sleeve happens with every installation and the addition of two 1 shim strips at the base prohibits AC installation due to inadequate clearance. To achieve the necessary 1/4 slope for proper drainage youll have to create your own shims to jam in the bottom. Additionally it is not possible to attach a rear grill as it conflicts with the air conditioners extended rear plastic louvers. If you dont go with the grill youll just have the fragile rear metal fins exposed to the elements.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

4 Stars

High expectations

Shelleym 4/23/2024

I have not used yet since it is early in season. Based on my experience with other LG items I dont expect any issues. Only thing I had wished for that it doesnt have is Bluetooth capability so that I could control by my phone to have it kick on when I am on my way home.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
2 Stars

Poor Performance Beware

JenCMar 1/31/2024

I purchased this unit last May of 2023 less than a year ago and the amount of cool air which it produced is only fair. This was noticed from the beginning. Its very warm in my sons room where we have placed this unit due to the heaters on during the winter months so we run the AC a lot to cool it. I have come to find out it doesnt work when the temperatures are even slightly below freezing. We had a Frigidaire which was in the room when we purchased the apartment so who knows how long it was there prior. It worked wonderfully in any type of weather outside for almost 14 years and probably more as I said it was in place when we purchased the apartment. It was run constantly and there were NO issues. Wish I could find it again. I will never purchase a LG Air conditioner and will recommend others not to as well. Im very disappointed in the performance. I will say their customer service is helpful and very good they cant help that this product isnt.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
1 Stars

Disgruntled

Beth x 11/18/2023

My air conditioner is heating up space above the in the wall sleeve. I have been waiting for an appointment for an LG repair person to come to inspect the unit. I have not received an email notifying me as to when this appointment can be set up-
Originally posted on lg.com

No, I do not recommend this product

Quality

 
5 Stars

Affordable

Anna627 9/29/2023

I love this air-conditioner. Kept my apt cool comfortable all summer I enjoyed a huge savings on my electric bills The energy saver mode is great Looks good also
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
4 Stars

Pretty good

Lisa Dimmitt 8/8/2023

I received my order but it came with broken and missing pieces
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Excellent air conditioner

Excellent Air Conditioner 8/6/2023

This LG air conditioner works so great I love it. Its easy to operate and cool down the room so quickly and stay cool.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Very good features and relatively quiet.

Scatole 8/4/2023

We bought it almost exactly a month ago. Its doing what and LG product is expected to doperform well
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

J M M 7/30/2023

So far the air condition works. Great It fit in the sleeves just like the old one I had for 24 years which still work just getting outdated and rusty on the outside otherwise still work good hopefully I have the same results with the new one
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Best Air Conditioner I Ever Owned.

Zalman12 7/30/2023

I bought and installed this air conditioner two weeks ago in the middle of a heat wave that hit New York City and it outperformed any air conditioner I ever owned. It cooled my living room and kitchen more than 500 square feet in less than 5 minutes.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Air conditioner

Deann68 7/21/2023

Landlord wouldnt replace the air conditioner so we purchased this one. Energy efficient. Love it. Electric bill cut I half. Works like a dream. Love the remote.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

fit and btu perfect

tmg123 7/16/2023

1 month works ok grill needs more blades whole grill needs more movement blows on me and couch ?????
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
4 Stars

good quality product

pwac 6/27/2023

needed a new unit and wanted a 220 power which this has also like the remote dont have to get up to change settings.only thing i dont like is it keeps turning off compressor every so often. i would like it to run continuously
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Both quiet and efficient

Cool lady 6/26/2023

I purchased this in April after reading reviews. I have an LG dvd player and it has worked well for 6 years so I gave their air conditioner a try. This through the wall unit so far runs quietly and efficiently It seems to be powerful. It cools the air from my living area to my kitchen. To date I am quite pleased.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

100 DO NOT BUY

Hot Mom 5/29/2023

We bought this unit about 3 weeks ago and has been a waste of money and it doesnt cool anything. When we called customer service they informed us that the unit doesnt cool unless its greater than 70 degrees faranheit. Well guess what its above 70 and its still not cooling. It seems they believe if its 70 oitside its 70 inside which is not the case. If you want your room to be cool I suggest looking else where.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

Very disappointed

Maintenance Director 4/28/2023

This product out of the box was damaged beyond repair.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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