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Energy Star Logo
3.3 | 21 Reviews

12,000 BTU 115v Through-the-Wall Air Conditioner

LG LT1216CER

Features

  • Cool down your desired space with this 12,000 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 air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.

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

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.

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

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.

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.

Features

  • Cool down your desired space with this 12,000 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
  • Runs on a minimum of 115 Volts
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) 10.2
Voltage / 60 Hz 115V
Watts (Cooling) 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 12, 000
BTU performance (Cooling) 11,800
CEER 10.5
dBA Level (Indoor / Outdoor) 60/66
Dehumid. (Pts/Hr) 3.9
Dry Air Flow (CFM) 280
EER 10.6
Est. Cooling Area (Sq. Ft.) 530
Summary
Type Through-the-Wall Air Conditioner
UPC Codes
UPC 048231379632
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.

3.3 out of 5

57% of reviewers recommend this product.

3 Stars

Tough sales/ installation experience

Dblunn 7/8/2024

Only used for a couple weeks. Nice features. Seems good replacement for 22 yr old Friedrich 12k unit. A little difficult to install. Sleeve was an option not originally provided by retailer. They then had none and I had to order from Amazon myself??? Extra $120. Should have been included with a specified through the wall unit for sure. Lets see if it lasts 22 yrs like the last one.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

Buyers beware

Chaddock 7/4/2024

Bought this new and installed now two years later the compressor will not shut off or cycle and freezes up due to a faulty compressor relay. The only way to shut it down is to unplug the unit. It seems to be happening to others that have bought this LG unit as well.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

New unit needed

Rightfoot 5/27/2024

Need to replace LE1812ER wall unit 18000btu. Cant seem to find on.
Originally posted on lg.com

Yes, I recommend this product

1 Stars

Disappointed

Boba1234 12/26/2023

Very disappointed. Loud. It came without the metal sleeve. I ended up buying the metal sleeve for an extra $150. I will never buy LG again.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

Poor customer support

Named 11/4/2023

Ive been trying to get a plastic screen for months. That needs to be placed in the very back of the wall sleeve. Ive called to many times to count. Cant understand what the problem is. Poor customer support.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

WONDERFUL LOVE THIS PRODUCT IT MAKES ME HAPPY

ADAM RG 10/25/2023

ITS FABULOUS COOLS THE WHOLE SPACE GET IT SO COOL
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Five star in my book

JaniM 10/23/2023

I was getting ready to move into a senior apartment complex which had no central air. If I wanted an air conditioner it had to have certain specifications. It could not be a window unit it had to be through the wall or a portable unit. I opted for through the wall but was having difficulty finding something with the sleep requirements that was large enough to accommodate my square footage. I was ecstatic to find this LG which was perfect for what I needed.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Excellent

Snowhite12 9/19/2023

We are happy enjoying we glad we bought this .I might buy another one
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Great Product

jen312 9/17/2023

I bought the unit during the peak of a heat wave as the old one non-LG decided to quit when it was needed the most. Long story short the new unit stood the test of the heat wave well. No regrets.
Originally posted on lg.com

Yes, I recommend this product

1 Stars

Loud and built out of cheap materials...

lgproductsucks 8/22/2023

Loud and built out of cheap materials... the cover for the air filter has been rattling for 2 years and now the plastic tabs that hold the cover closed broke. I have to tape it to keep it shut. I should have gone with Frigidaire instead of this garbage product.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Replaced old air conditioner

Mutant 8/17/2023

We replaced a 20 year old wall air conditioner with this one. Runs more efficiently and looks much nicer.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

buyer beware

should no waste money 8/3/2023

bought yesterday fan just hums tried to turn and it drags if i could i would give no star pure junk do not buy
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
4 Stars

Cools the room nicely

Elwood2656 7/28/2023

Bought this to replace a 20 plus year old unit So far it cools the room just fine
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
1 Stars

Linda VanHall 7/9/2023

Bought this almost exactly one year ago it no longer is cooling
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
4 Stars

It does as advertised but....

HoHo37 7/6/2023

This ac does what it is supposed to do but does something I find annoying. In energy saving mode the unit will shut down when the temp is reached. Thats good. Less good is that the fan will turn on every 3 or so minutes to check the air. This creates unwanted noise. When cooling is again needed the compressor and fan start again and the cycle is repeated. Why the fan is needed for the sensor to check the ambient air is a mystery to me . Other then that all is well and the unit does a good job of cooling.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
3 Stars

Too Loud

Works GREAT just too Loud 7/1/2023

The ac cools very good. But its too Loud. Very noisy....
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

great price great service

DominicB 6/26/2023

Have used the unit dozen times - covers the room and hall way - exceptional confront control Family loves it as well Was a great and reasonable purchase for me
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
4 Stars

Cools fine

JK1948 6/10/2023

So far so good. Need to see if it lasts more than a year unlike the W brand it replaces.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

Unimpressed

Lg thru the wall air 6/10/2023

Wexreplacrd an older lg with this one Same btu Purchased a case for it nothing fit correctly My installer said it was a poor design and cheaply made
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
4 Stars

Works fine.

JenMatAC 6/10/2023

I wanted more features to pull the air from the outside to cool but considering that avoiding this keeps allergens from entering the inside space and most recently smoke from the Canadian fires I probably made the right choice. I didnt realize that there was even a valve to control the intake of outside air to cool. You learn something new everyday as they say.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Sturdy well designed AC thru the wall unit

DickA 6/1/2023

After about a month of intermittent use the unit is performing up to expectations. Of course the real test is longevity. It remains to be seen if it will still work next cooling season. I hope so.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value