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LG 11,800 BTU Energy Star Through-the-Wall Air Conditioner with 3 Fan Speeds & Remote Control - White

MODEL:

LT1236CER
3.3 out of 5 Customer Rating
LG 11,800 BTU Energy Star Through-the-Wall Air Conditioner with 3 Fan Speeds & Remote Control - White is rated 4.4 out of 5 by 65.
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About this Item

LG Wall Air Conditioner

Features:
  • Stay comfortable with this LG Air Conditioner that cools up to 330 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
PDF Icon Energy Guide
PDF Icon Owners Manual
PDF Icon Specifications Sheet
PDF Icon Warranty
Product Height
14.4 Inches
Product Width
24 Inches
Product Depth
20.09 Inches
Product Weight (lbs.)
82 Lb(s)
Overall Height with Sleeve (in.)
-
Overall Depth with Sleeve (in.)
-
Overall Width with Sleeve (in.)
-
Color
White
Type
Wall
Room Size
Medium
Cooling BTU
11800 BTU
Cooling Speeds
3
Number of Fan Speeds
3 Fan Speeds
Heat/Cool
No
No. of Air Flow Directions
4
CFM
-
Vent/Air Exchange Exhaust
Yes
Moisture Removal (Pints/hr)
-
Filter Description
Washable Filter
Washable Filter
Yes
Standard Mesh Filter
-
Charcoal Filter
No
Chassis Type
Thru the Wall
Additional Features
-
Universal Fit Wall Sleeve
No
General Features
-
WiFi Connected
No
Smart Features
-
Works with
-
Control Type
Digital
Temperature Display
Yes
Automatic Timer
Yes
Delay Timer
Yes
Automatic Shut Off/Sleep Mode
-
Quietest
No
Remote Control Included
Yes
Replacement Sleeve Included
No
Replacement Sleeve Model
AXSVA1, AXSVA4
Upgradeable Filter
No
Upgradeable Filter Model Number
-
Trim Kit Included
-
Energy Star Rated
No
Energy Efficiency Ratio
10.5 EER
Energy Star Approved
Energy Star Approved
Power Cord Length (in.)
-
Power Requirements
220 Volt 15 Amp Dedicated Circuit (Tandem Plug)
Voltage (V)
230
Amperage
15 Amps
Auto Restart
Yes
Refrigerant Type
R32
Power Cord Location
-
Cooling Amps
5.5 Amps
ADA Compliant
No
CSA Listed
No
ETL Listed
No
UL Listed
No
Warranty Terms - Parts
12 Month(s)
Warranty Terms - Labor
12 Month(s)
Energy Info
-

Customers Say

AI-generated from the text of customer reviews

This wall air conditioner delivers impressive cooling power that consistently exceeds expectations, quickly bringing comfort to spaces up to 1000 square feet. The intelligent temperature management maintains steady comfort levels while keeping energy costs in check through efficient auto-cycling and energy-saving modes. While the core unit feels solidly built, some exterior plastic components require gentle handling. The versatile operating modes, including a highly effective dehumidification setting, let you fine-tune your environment. The convenient remote control and adjustable air flow make daily operation a breeze, though the noise level, while generally manageable as white noise, may be noticeable for some. Installation requires careful planning and two people, but once mounted, the unit provides reliable, powerful cooling that users trust through intense heat waves.

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Rated 5 out of 5 by from Cooling [This review was collected as part of a promotion.] This LG through the wall air conditioner is a great option for cooling a large space. We have a large open bottom floor in our home, and it definitely has the ability to cool it. Energy efficient and multiple settings for fan speed. Convenient remote control. Obviously, an in the wall mounted air conditioner isn't for everyone, but i love the idea of not having a window blocked and no large unit sitting on my floor for a portable air conditioner. Great option from a trusted brand.
Date published: 2025-05-23
Rated 5 out of 5 by from Great features [This review was collected as part of a promotion.] Great air conditioning wall unit, it is quiet and works fantastic. Keeps my living room nice and cool during the hotter seasons. The unit was easy to install in my previous wall cutout. It also comes with a remote, making it easier to access!
Date published: 2025-05-21
Rated 5 out of 5 by from Big and mighty air conditioner! [This review was collected as part of a promotion.] This LG 9800 btu air conditioner is very powerful! It has a lot of settings on it from fan, to low cold to high cold. The remote is very operational and convenient as well. It is a little bit difficult to install by yourself because it is big and bulky. But with two people it installs quite easily. Its powerful enough to cool down about 600 sq ft of space in my house, so it definitely cools more than its rated to in my opinion.
Date published: 2025-04-28
Rated 5 out of 5 by from Cool air [This review was collected as part of a promotion.] Installation was very easy. My husband and I tackled it. It is heavy so 2 people make it easier to lift. I love how easy it was to install. It does come with a remote which is a nice added bonus. Instructions were straightforward and easy to follow. I cannot wait to get some use out of this in the warmer months. The air comes out so cold.
Date published: 2025-04-23
Rated 5 out of 5 by from Very cool and easy to install! [This review was collected as part of a promotion.] My family and I just moved from Washington to Florida and the difference between the weather is extremely opposites! This room air conditioner by far is something I enjoy now coming home. It keeps my very chill feeling like by home. It was easy to install on the window, and the remote controls are easy to use. Overall, I’d say this is the model I’d recommend to everyone! It’s great and efficient.
Date published: 2025-04-10
Rated 5 out of 5 by from Love all the features [This review was collected as part of a promotion.] 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 doesn't 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.
Date published: 2024-08-06
Rated 5 out of 5 by from Great LG wall air conditioner. 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.
Date published: 2024-06-20
Rated 5 out of 5 by from Affordable! 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!
Date published: 2023-09-29
Rated 5 out of 5 by from Great service and a great air conditioner I recently replaced the previous version of this air conditioner. The old one lasted a long time. This one is next gen, but they didn’t change it in any bad ways (thanks LG). PC Richard made this process very easy although they had a site service issue. They were very accommodating and their delivery guys were great too.
Date published: 2023-08-11
Rated 5 out of 5 by from Excellent air conditioner [This review was collected as part of a promotion.] This LG air conditioner works so great; I love it. It's easy to operate; and cool down the room so quickly and stay cool.
Date published: 2023-08-06
Rated 5 out of 5 by from Very good features and relatively quiet. We bought it almost exactly a month ago. It’s doing what and LG product is expected to do…perform well!
Date published: 2023-08-04
Rated 5 out of 5 by from 👍 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!
Date published: 2023-07-30
Rated 5 out of 5 by from Best Air Conditioner I Ever Owned. 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.
Date published: 2023-07-30
Rated 5 out of 5 by from Air conditioner [This review was collected as part of a promotion.] Landlord wouldn't 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.
Date published: 2023-07-21
Rated 5 out of 5 by from fit and btu perfect [This review was collected as part of a promotion.] 1 month works ok grill needs more blades whole grill needs more movement blows on me and couch ?????
Date published: 2023-07-16
Rated 5 out of 5 by from Both quiet and efficient! 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.
Date published: 2023-06-26
Rated 5 out of 5 by from Good features [This review was collected as part of a promotion.] I bought it little bit more than a month ago and so far satisfied. Cooling really well, also I like auto mode so it stops when temperature reached your desired setting. It is not very quiet as I would like but the noise is not worse than the other units I have.
Date published: 2022-07-28
Rated 5 out of 5 by from Stand by the BRAND [This review was collected as part of a promotion.] My experience has been fantastic with LG PRODUCTS, so when my air conditioner recently failed...I did not hesitate to replace with an LG air conditioner... So far, so good!!! I'm hoping this product lasts at least as long as my LG TV has!!! (14+ years)
Date published: 2022-07-03
Rated 5 out of 5 by from Cools the entire 2nd floor [This review was collected as part of a promotion.] We have two 15x15 bedrooms. The air conditioner is in one and when we put a fan in the hall to blow it into the other one in an hour and a half it cools it down beautifully. Works like a charm
Date published: 2022-06-16
Rated 5 out of 5 by from cool [This review was collected as part of a promotion.] i just bought this one new after other one i had the fan motor went bad after only 3 years and i didn't get exteneded warranty the first time didn't think i would need it but i got it for new one that i just bought . it cools my apartment down really fast and works great i guess other one i got was a fluke
Date published: 2022-06-05
Rated 5 out of 5 by from Great features [This review was collected as part of a promotion.] I bought this nine days ago. Today was the first day to use it. I'm happy with it. I like that it's an energy star. I hope to have it for several years to come. I had a white westinghouse for 23 years & went out the last couple of hot days that we had. I love that it has a remote control.
Date published: 2022-05-31
Rated 5 out of 5 by from Great overall [This review was collected as part of a promotion.] Does a good job cooling our entire 900 sq ft apartment. Looks good on the wall and appears to be of decent build quality. I only wish it was running a bit quieter, but I can't ask more for the price.
Date published: 2022-05-23
Rated 5 out of 5 by from Perfect fit for my apartment [This review was collected as part of a promotion.] , this is a perfect AC unit for my apartment oh, it does a great job of cooling. It looks wonderful and Pitt's the opening perfectly. Everybody that sees it comments on it.
Date published: 2022-05-04
Rated 5 out of 5 by from Love the remote control [This review was collected as part of a promotion.] Haven’t been able to use it for two months now cooling season months now so saving electricity but great product
Date published: 2020-12-31
Rated 5 out of 5 by from New A/C [This review was collected as part of a promotion.] It's pretty, a little noisy, but I like the DRY feature. Also, I got it for a relatively great price (match), so I was happy! Also like the fact that I bought the warranty, and if you don't need a repair within five years, you get reimbursed. Win-win!
Date published: 2020-12-25
Rated 5 out of 5 by from Great unit [This review was collected as part of a promotion.] Great unit, nice and sleek, not too noisy, and easy to install
Date published: 2020-12-13
Rated 5 out of 5 by from Haven't had a problem after 6 months [This review was collected as part of a promotion.] Seems good, quite, and doesn't draw too much energy.
Date published: 2020-12-11
Rated 5 out of 5 by from Perfect for my house [This review was collected as part of a promotion.] Perfect for my 2 bedroom house! This replaced an old LG air conditioner I had for many years.
Date published: 2020-12-11
Rated 5 out of 5 by from Great Cooling [This review was collected as part of a promotion.] I've only had it about 3 weeks, but it's made a world of difference in my place... the cooling effect is great and most welcome and, I should add, much needed. Glad it's here. Looking for many years of cool comfort.
Date published: 2019-08-30
Rated 5 out of 5 by from Fully satisfied [This review was collected as part of a promotion.] I bought my LG unit a month ago and couldn't be more satisfied. It performs exactly as advertised, cooling the room quickly and efficiently. I am happy I purchased it, and the rebate received made the price even better.
Date published: 2019-07-25
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