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4.1 | 33 Reviews

12,000 BTU Smart wi-fi Enabled Window Air Conditioner

LG LW1217ERSM

Features

  • 12,000 BTU
  • Estimated Cooling Area 550 Sq. Ft
  • LG ThinQ® Technology
  • 3 Cooling and 3 Fan Speeds With Auto Cool

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 23.62"
  • Height: 15"
  • Depth: 22.18"
  • Energy Star Rated: No
  • Cooling Power: 12000 BTUs

See More

 

Features

  • 12,000 BTU
  • Estimated Cooling Area 550 Sq. Ft
  • LG ThinQ® Technology
  • 3 Cooling and 3 Fan Speeds With Auto Cool
  • Easy To Use Electronic Controls
  • Automatically Restarts After Power Failure
COMPRESSOR
Compressor Rotary
DIMENSIONS/WEIGHT
Fits Windows 27"-39" W x 16" H
Net Weight (lbs.) 82 lbs
Product Dimension (WxHxD) 23.62" x 150" x 22.20"
Shipping Dimension (WxHxD) 27.17" x 18.31" x 23.62"
Shipping Weight (lbs.) 90 lbs
ELECTRICAL RATINGS
Rated Amps (Cooling) 9.3
Voltage / 60 Hz 115V
Watts (Cooling) 990
FEATURES
Air Deflection 4-Way
Air Discharge Type Top Discharge
Air Filter Washable
Auto Restart Yes
Chassis Type Slide In-Out
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
SmartThinQ® Yes
Thermostat Control Thermistor
Timer 24 Hr, On/Off
Window Installation Kit Yes
MATERIALS/FINISHES
Color White
PERFORMANCE
BTU Performance 12, 000
BTU performance (Cooling) 12,000
CEER 12.0
dBA Level (High/Mid/Low/Sleep) 55/54/53
Dehumid. (Pts/Hr) 3.8
Dry Air Flow (CFM) 265
EER 12.1
Est. Cooling Area (Sq. Ft.) 550
SUMMARY
Type Window Air Conditioner
UPC CODES
UPC 048231382137
WARRANTY
Parts & Labor 1 Year Parts and Labor
AIR CONDITIONER THINQ® SMART FEATURES
ThinQ® Smart Technology Yes

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 23.62"
  • Height: 15"
  • Depth: 22.18"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 12000 BTUs

Energy Guide

Specifications Sheet

Owner's Manual English 5,566K 10/31/2023

Owner's Manual Spanish 5,505K 10/31/2023

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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.

4.1 out of 5

75% of reviewers recommend this product.

5 Stars

Great Unit and Price

GeeMann 11/14/2023

I purchased this a few weeks ago and couldnt be happier. Great Efficient unit. It is very quiet too. Love it
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Runs quiet great features.

Robert M F 8/28/2023

I bought this air conditioner on August 9th. It is so much quieter than my old one and it keeps my house cool. I run it on the energy saver mode most of the time so it cycles on and off periodically and I am sure that it will save me money on my electric bill.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

WiFi rocks

Front living room 8/24/2023

Love my new LG 12000 BTU SMART WI-FI ENABLED WINDOW AIR CONDITIONER. It cools the needed area in my house perfectly. The WiFi feature is totally convenient when I can use the app on my iPhone to turn it on from anywhere.it sure is nice to come home to an air conditioned home.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Perfect

Dave157 8/18/2023

I bought this window unit last month. Very pleased with this unit as it keeps me cool during these very hot days.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Its very cool

Merlen 8/7/2023

This air conditioner makes me cool all day long. It works pretty well I was having issues with the reset button but it was resolved. Its pretty nice.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Ease of installation very workable.

John swims 7/30/2023

I bought this unit for the features friendly installation instructions.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Quietly makes room comfortable

Grammy LJH 7/25/2023

Finally got my AC installed Directions were useless family members installed it for me but it leaked into the house? I hired a handyman from Angi and he had had experience installing ACs and its working like a charm What a blessing in this awful heat and humidity
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Works great eas to use gets very cold

Tcb 21s are d 7/15/2023

Had about a month Ver cold works great easy to uses
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
4 Stars

Best Air Conditioner I ever owned

EdWit1971 7/7/2023

I reserve 5-star for perfection. I gave 4-stars because its very close. I wanted the WiFi interactive model and had to buy off Amazon to get it. Delivery was perfect. Product is perfect out of the box. Its 12000 BTU and keeps my small 2-bedroom Apartment cold all by itself. However the Thermometer is attached to the unit and it thinks its colder than it really is and it shuts off the compressor when in reality the rest of the room is like 4 or 5 degrees Fahrenheit warmer. This is problematic. The Thermometer should have had options for a remote across the room one or at least one that extended out of the machine with a long cord for me to place it further away. But other than that its great. My model even has an App I control it from my phone and it runs a Diagnostic to check all kinds of things internally and tell me if all the components and coolant levels are fine.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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1 Stars

James Folmar 6/24/2023

Bought this on 6/6/23 received on 6/12/23 and doesnt work right out of the box. 2 calls to support has done nothing.. Will never buy LG again. Never LG Never
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Delivers the Goods on all Features

Claudanne 5/18/2023

I am so glad I bought this LG Thin q 12000 BTU window unit. It delivers on all promises. It is actually quiet. It cools more than the recommended square footage. It was easy to install. Everything needed to make installation efficient was in the carton. The filter is easy to access. The remote is effective at 30 feet. Thank you LG for making an excellent product.
Originally posted on lg.com

Yes, I recommend this product

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5 Stars

LG AC LW1217ERSM

mark bacharach 5/14/2023

I used the AC for the first time last night and it was great. It was quiet cooled off the room very quickly and we are very pleased with our purchase.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Cools a large open concept area.

Ptrout 5/14/2023

Used it a couple of times and good so far. Only had the unit for a week its a 2 man job installing the unit.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Great AC

Rsmithjrr 5/6/2023

Works great had some mi or issues but we worked hard to figure it out together with the LG support team
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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1 Stars

Leaks doesnt cool could be 90 out and all it do

Bob571981 4/15/2023

Leaks doesnt cool could be 90 out and all it do
Originally posted on lg.com

No, I do not recommend this product

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5 Stars

Works Great Keeps 3 1/2 rooms cool during summer

Carl Beach House 12/3/2022

Works Great Keeps 3 1/2 rooms cool during summer. I use the Wifi app to adjust temperature during the day as needed. Its very easy.
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

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2 Stars

Worked Great... at frist

Rollie58 11/29/2022

I bought this in late July when I really needed it. Got it installed in early Aug. 2022 and it worked great. Temps cooled off so I turned the unit off. Temps went back up so I tried to turn the unit back on. I tried everything I could do but the unit would NOT TURN ON AGAIN. Called LG help line Oct/22/2022 and Im still waiting on a service call 11/29/2022.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Great features easy to install quiet operation.

DonnaPD 11/6/2022

Purchased a month ago as a quick fix when our central a/c went out. Glad we made the purchase.
Originally posted on lg.com

Yes, I recommend this product

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1 Stars

Terrible

Pjhend 10/13/2022

I bought this it lasted 2 months and the control panel died lg had no repair service in the area would never buy this again
Originally posted on lg.com

No, I do not recommend this product

Features

 

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5 Stars

Terrific machine far better than expensive priors

LarryInBrookline 10/6/2022

Im the guy who always tends to spend top dollar on things. This is my second LG replacing units that cost almost twice as much think German for Fred. Much much quieter flawless operation feels solid. Im pretty stunned at the quality/cost ratio here. This is my go-to brand now.
Originally posted on lg.com

Yes, I recommend this product

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5 Stars

Cool and comfortable

Flowers66 9/20/2022

During this extreme heat purchased this air conditioner and life is much better and cooler. l G is my brand of trust worthy merchandise. Not my first LG product. Actually my third.
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

Value

 
5 Stars

Works well great features

WaterLake 9/6/2022

No problems to report excellent cooling capacity excellent features.
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

Value

 
5 Stars

Love the features including the remote control.

Elizabeth800 9/1/2022

We had a small air conditioner before purchasing the large one from LG Electronics and the difference is really great
Originally posted on lg.com

Yes, I recommend this product

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1 Stars

Did not work

K 1955 8/11/2022

I bought this a month ago installed it and didnt work. Waiting for refund so I can by another one. Kim Lillie.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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3 Stars

My lg window air conditioner

Window 3 8/7/2022

I purchased a couple of months ago and have reached out to lg support with no help my air conditioner starts off great but by the middle of the night gets warm ? I have tried all the tricks I k ow and what the support team suggested but nothing has changed? I also purchased a Frigidaire for my sons room at the same time and his Frigidaire works great Its just to heavy to return
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
4 Stars

Nice unit but has issues

Good unit but not A 8/5/2022

Has an advanced rotary compressor and is extremely quiet but the fan speeds are poor. I can not tell any difference between the low and high speed and the high speed is about the same as on my 5000 btu unit and this one is 12000.One reason I purchased the unit was its ability to turn it on remotely since this is in our weekend home and it works great LG warranty service sucks This unit weighs 80 lb and the first one we purchased did not work. pretty poor quality control to not test unit before they sell it. They have no in home service in our area had to remove and return to the store. Kept getting different stories from the LG service people. Forgot to mention a nice feature is the unit has a case which you install in the window then you slide the unit in instead of having this 80 lb thing to install. Would buy again just hope dont ever need any warranty service on the unit
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

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5 Stars

cooling down

southernchill 7/29/2022

I had to wait a little while to get this LG window unit but it was well worth the wait. Easy to install and had my work shop cooled down in no time.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

john novak 7/28/2022

i bought my first lg 12000 ac from home depot 12 years ago this my second lg 12000 ac that will probibly outlast the first one great product
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Very quiet

Ida Clark 7/25/2022

It is nice having a quiet one. I love LG products. It keeps me nice and cool on these hot days. Great customer service. Nice looking air conditioner too.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Excellent product

Gray1234 7/22/2022

This AC is so good that when my last one went out and the extended warranty had been expired for a while I knew this was the exact one I wanted. Love the App that enables you to adjust settings from your phone and check the filter and smart diagnose any issues that might arise. I really like that the AC comes out of its case so you can install just the case first and then the AC unit. It cools well in the southern heart and humidity. Well worth the purchase.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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2 Stars

Very disappointed

tomb13 7/19/2022

I have had this new unit less than a week and it has been nothing but problems. This is a replacement for the exact same model that lasted just 4 years before the thermostat stopped functioning. This one seems to have the same problem. Actually this ones problem seems to be much worse. I am sitting here right now with it turned to 65 degrees in an effort to get it to cool - room temperature is now climbing to over 80. The compressor kicks in but stops either immediately or after much too short a period to cool the room. Bad news - I have a brand new air conditioner that does not work and this is the first day of a forecast 7-day heat wave.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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1 Stars

The air conditioner would not turn on.

david1941 7/16/2022

This air conditioner was fully installed in my 39 in. wide window. It was easy to install. I plugged it in and the fan was working. Four hours later I attempted to turn the unit on for cooling and it would not start. I went through all the checks per LG instructions but had no success in turning on the unit. I removed the unit and returned it to LOWES. LOWES ordered me another unit of the same model. When it arrived at my home I decided not to install it at first but rather plug it in on the floor to see if it works. This second unit also did not work. This unit was returned to LOWES and an off brand non LG air conditioner was purchased. This new air conditioner turns on and works well. The bottom line for this experience is that LG needs to test there products at the factory before selling to there customers.
Originally posted on lg.com

No, I do not recommend this product

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Quality

 

Value

 
4 Stars

Douglas 22 7/9/2022

I bought this six weeks ago and is hard to make an assessment. So far it has been good but wish there was a true differential in fan speeds.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value