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Model #LW1217ERSM

Store SKU #1002228026

Store SO SKU #1002182742

12,000 BTU 115-Volt Window Air Conditioner LW1217ERSM with WiFi, ENERGY STAR and Remote in White

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$undefined.00 /mo* suggested payments with months* financingApply Now
  • Cools medium rooms up to 550 sq. ft. (22' x 25’ size)
  • 3 Cooling & 3 Fan Speeds with Auto Cool
  • Works with LG ThinQ, Amazon Alexa and Hey Google
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Product Overview

Image of a room with a window air conditioner, woman's hand holding smartphone using LG ThinQ app, Google Assistant and Alexa logos

Control Your Cool From Anywhere

With the LG ThinQ app, control your air conditioner from anywhere using your smartphone, the Google Assistant or Amazon Alexa.

Young girl sleeping soundly with dog and a lo-decibel chart

Optimal Quiet Operation

LG window air conditioners operate at sound levels as low as 52dB (in low mode) eliminating unnecessary noise.

Room with sofa and window air conditioner showing air flow

Maximum Cooling

LG air conditioners provide exceptional cooling power with 4-way air deflection that lets you move the air where it's needed.

Picture representing 3-in-1 function, reads cool, fan, dry

3 in 1 Operation

Cool mode is ideal for cooling and dehumidifying, fan mode circulates air, dry mode is ideal for damp days.

Close up of LED control panel and remote control

Maximum Usability

User friendly LED display and simple selection control panel with full-featured remote.

Image of air conditioner with filter pulled out

Removable Washable Filter

Save time and money with the removable, washable filter.

ENERGY STAR logo

ENERGY STAR Certified

LG air conditioners meet the high standards of the ENERGY STAR Program using energy-efficient technologies that translate into electricity savings.

Icon of fan representing multiple fan speeds

Multiple Fan Speeds

Three cooling modes and three fan speeds let you customize your cool.

Icon of clock that says 24H

24-Hour On/Off Timer

Set up to 24 hours of operation to turn unit on or off automatically.

Icon of start button with circular arrow

Auto Restart

Automatically turns the unit back on when power is restored after an outage.

Icon of instructions, measuring tape and screwdriver

Easy to Install

Installation kit provided for quick and easy setup.

Icon of 115-volt outlet that says 115 volt, 15 amp

Plug Type

Works with a standard 115-volt outlet.

Icon saying 1 year parts and labor limited in-home service warranty

Warranty

One Year Limited Parts & Labor Warranty

The LG LW1217ERSM is not only cool, it's SMART. Cool your home from anywhere using LG ThinQ technology to control your air conditioner with your phone or use with Amazon Alexa and Hey Google to have control with the sound of your voice. This quiet unit is ideal for cooling medium rooms up to 550 sq. ft. and is ENERGY STAR certified to help save on energy. The unit has 3 cooling and fan speeds and a 24 hour timer to create a cooling schedule. 4-way air deflection lets the flow of air be directed where it's needed most whether cooling, dehumidifying or just circulating air. If there is a power outage, the auto restart feature will automatically turn your unit back on when power is restored. Other features include a remote control, easy window installation kit, slide-out (washable) filter and a check filter alert.
  • 12,000 BTU Smart (Wi-Fi) Window Air Conditioner
  • Estimated cooling area: 550 sq. ft. / Room size: 25 ft. x 22 ft.
  • Smartphone control with LG ThinQ technology.
  • Voice control works with Amazon Alexa or Hey Google
  • User friendly digital control panel and remote control
  • Fits window openings: 27'-39 in. W x 16 in. H
  • 3 in 1 operation: Cool/Fan/Dry
  • 3 cooling and fan speeds with auto cool
  • 4-way air deflection
  • Quiet operation down to 52 dB
  • 24-hour on/off timer
  • Power failure auto restart
  • Slide-out, washable filter
  • Filter check reminder light
  • Window Installation kit included
  • Slide in/out chassis for easy installation
  • 115-Volt LCDI Plug (NEMA 5 - 15)
  • Power cord length: 72
  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs
  • California residents

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Top Rated12,000 BTU 115-Volt Window Air Conditioner LW1217ERSM with WiFi, ENERGY STAR and Remote in White
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BrandLG ElectronicsGELG ElectronicsLG Electronics
Name12,000 BTU 115-Volt Window Air Conditioner LW1217ERSM with WiFi, ENERGY STAR and Remote in White12,000 BTU 115-Volt Smart Window Air Conditioner with WiFi and Remote in White, ENERGY STAR7,500 BTU 115-Volt Window Air Conditioner LW8021HRSM with Cool, Heat and WiFi in White14,000 BTU 115-V Dual Inverter Smart Window Air Conditioner LW1517IVSM with WiFi and Remote in White
Price
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$44900
$49439
$49900
Ratings
(3136)
(1192)
(97)
(2545)
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Specifications

Dimensions

Product Depth (in.)
21.19 in
Product Height (in.)
15 in
Product Width (in.)
23.63 in
Window opening maximum height (in.)
16
Window opening maximum width (in.)
39
Window opening minimum height (in.)
16
Window opening minimum width (in.)
27

Details

Air Conditioner Features
Adjustable Humidistat,Automatic Shutoff,Filter Light Reminder,Overload Protection,Self-Diagnostic Tools,Timer,Wi-Fi Enabled,Wireless
Air Conditioner Product Type
Window Unit
Air direction/circulation
4-way
Amperage (amps)
9.3
Appliance Category
A/Cs and Fans
BTU Cooling Rating (ASHRAE)
12000 BTU
BTU Cooling Rating (DOE SACC)
12000 BTU
Color Family
White
Combined Energy Efficiency Ratio (CEER)
12.0
Control Type
Remote Control
Controls
Digital
Cooling Area (Sq. Ft.)
550
Decibel (Sound) Rating
52 dBA
Decibel Rating
52 dBA
Energy Efficiency Ratio (EER)
12
Filter Type
Washable
Heater Included
Without Heater
Included
Remote Control,Window Panels
Number of cool settings
3
Number of Fan Speeds
3
Power Options
Plug-in
Product Weight (lb.)
81 lb
Remote Access
Remote Access
Requires Hub?
No Hub Required
Returnable
90-Day
Smart Home
Smart Home Enabled
Smart Home Protocol
Wi-Fi
Voice Control Hub Required
No Hub Required for Voice Control
Voltage (volts)
115
Wattage (watts)
990
Window Type
Single Hung
Works With
Alexa, Google, SmartThinQ

Warranty / Certifications

Certifications and Listings
FCC Listed
Manufacturer Warranty
1 year parts and labor

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.2
    out of 3,136 reviews
  • 80% recommend this product
Filter by:
Showing 1-30 of 3,136 reviews
The water is constantly leaking from the unit.
The water is constantly leaking from the unit. It was professionally installed with the proper tilt. LG AC products are well known for water issues and they refuse to repair it although the unit is still under warranty stay away from LG products.
by
Response from LGAnswersOct 1, 2021
We hate hearing your unit is not working properly. I'd like to see if we can help. Please contact LG Customer Support via private message on Facebook @LGUSSupport and use #VOC in your first message to our social media support team. Also include your contact information, model/serial numbers and date of purchase so that we can investigate and explore all options to provide you with quick assistance and expedite a resolution. We will do everything in our power to help and apologize for any inconvenience experienced. Thank you.^Venette LG
    Bad packaging
    Everyone knows that the back of an air conditioner with the fins and coils is fragile. So why would they create a box for the air conditioner that does not protect these fans and coil. Something sharp went through our box during shipment and smashed the fins and possibly damaged the coil. For $400 I wasn’t going to take a chance, so I returned it. Also there were no handles In the shell of the air conditioner so that you could lift it out of the box. While it looks like a nice unit there’s some things that are poorly thought out.
    by
    Response from LGAnswersJul 6, 2021
    We are continuously working to improve the quality of our products and anticipate market demands that drive customer satisfaction. Your feedback is especially important to us and your concerns will be shared with our product team. If you have questions or further concerns, please reach out to our support team on Facebook at @LGUSSupport. We apologize for any inconvenience this caused. ^Venette LG
      1 person found this helpful
      LG needs to be out of business!
      This window unit is less than 24 months old and is not only dripping water into my living room, it's completely corroded on the exterior fins as well for no reason. And although I bought THREE of them - the technology seems incredible at first with low noise - LG refuses to do anything at all for me, nor will Home Depot. Unless you want to spend $1000 a year on a throw away item with a one year warranty DON'T DO IT!!
      by
      Response from LGAnswersJul 2, 2021
      We hate to hear you are dissatisfied with your unit's performance. If you'd like to discuss more, please reach out to our support team on Facebook at @LGUSSupport. To speak with an agent via phone, you can call 800.243.0000 We apologize for any inconvenience this caused. ^Venette LG
        2 people found this helpful
        LG 10,000 BTU Air Conditioner review
        I have owned this unit for a month now. It's quiet, easy to install, BUT these are the things that would prevent me from buying another one. Top most the blower is weak, On high setting it feels like it's set on low, especially compared to the old 10,000btu unit I replaced it with. My old unit on high felt like a hurricane force wind coming out of it. This model on high feels like a soft gentle breeze coming out it which makes cooling down a large room harder and longer to do. My 2nd issue is when set on dehumidify you have no fan speed control. 3rd issue it doesn't cool down to specified temperature. I have it set to 68 but the room maintains a constant temp of 72 to 73 degrees. That a 4-5 difference!! This unit is factory set to focus more on energy efficiency then anything else. The condenser constantly turns on and off with a few minutes of each other.
        by
        Response from LGAnswersJun 30, 2021
        We are continuously working to improve the quality of our products and anticipate market demands that drive customer satisfaction. Your feedback is especially important to us and your concerns will be shared with our product team. If you have questions or further concerns, please reach out to our support team on Facebook at @LGUSSupport. We apologize for any inconvenience this caused. ^Venette LG
        • DIY
        6 people found this helpful
        I slipped a little while assembling it, but there is...
        I slipped a little while assembling it, but there is no cold air, what should I do? Please, help me.
        by
        • Verified Purchase
        11 people found this helpful
        Easy to install and operate and most importantly - It keeps the room cool and runs quietly.
        Easy to install and operate and most importantly - It keeps the room cool and runs quietly.
        by
        • Verified Purchase
        • Recommended
        2 people found this helpful
        I ordered this specific unit because it was the top rated on the New York Times “Wirecutter” revi...
        I ordered this specific unit because it was the top rated on the New York Times “Wirecutter” review. This is my first window AC unit living in NYC so I needed one that was good (considering all window units are pretty awful). It does a good job of cooling down the space (about 300 sqft), however is fairly loud even for a window unit. I have to turn it off or keep it on Eco Mode when trying to watch tv. It was very easy to install. My biggest complaint is that the WiFi doesn’t work, which is one of the main reasons I bought it. Nothing is wrong with my personal Verizon Fios WiFi and I’ve tried troubleshooting a million different times. What’s worse is the customer service for LG and the ThinQ app is absolutely awful — it’s been two weeks of trying and I’m still unable to get anyone on the line to help. I tried to get help directly through the ThinQ app but they provided instructions for setting up a hotspot using a SECOND cell phone. Who has two cell phones? And I don’t even have hot spot capabilities on my phone. One of the most infuriating customer solution experiences I’ve ever had. If you’re looking for a unit specifically with WiFi capabilities beware, as this might not even work for you.
        by
        Response from LGAnswersJun 2, 2021
        We are continuously working to improve the quality of our products and anticipate market demands that drive customer satisfaction. Your feedback is especially important to us and your concerns will be shared with our product team. If you have questions or further concerns, please reach out to our support team on Facebook at @LGUSSupport. We apologize for any inconvenience this caused. ^Venette LG
          10 people found this helpful
          Considerable difference
          I bought this for my home office because the home central AC doesn't reach my office and I work from home and it's getting unbearable some days. I purposely purchased the wifi enable unit so I can monitor it remotely and start it when I'm not at home so it's ready for me and it's SO much better!!! I highly recommend it for anyone. My room is under the Sq footage that it's meant for which just means it'll stay colder longer with less energy.
          by
            • Recommended
            3 people found this helpful
            Doesn’t work as intended.
            Install had to be a custom job due to the style of windows, not a problem. Installed easily and quickly, very quit!! Very cold! I purchased this unit for the WIFI….. so my unit could be monitored and times of operation be installed. The app sucks, the WiFi sucks, the connection is absolutely embarrassing. Called Lg and they said they are not responsible for WiFi issues. This unit is less than 10ft from my router… save the money, but a cheap unit.
            by
            Response from LGAnswersMay 20, 2021
            We hate to hear you are dissatisfied with your unit's performance.If you'd like to discuss more, please reach out to our support team on Facebook at @LGUSSupport. To speak with an agent via phone, you can call 800.243.0000 We apologize for any inconvenience this caused. ^Venette LG
              10 people found this helpful
              Great product, easy to install and set up. I...
              Great product, easy to install and set up. I love the WiFi feature it has, as I can program the unit to come on and shut off at a given time.
              by
              • Verified Purchase
              It does have great features.
              I bought this unit about 6months ago and it runs great.
              by
                • Recommended
                Powerful window unit
                I've never had air conditioning before, and this window unit is a game changer. It is efficient and takes the edge off in several rooms of my largely open floor plan house. It is narrow enough that I was able to install it in a casement window (after removing the window from its frame). I didnt think i would take advantage of its wifi feature, but it did end up coming in handy many times.
                by
                  • Recommended
                  Great unit electric bill has gone down because it comes on when my he needs it and my cat don't f...
                  Great unit electric bill has gone down because it comes on when my he needs it and my cat don't freak out when it does come on since our home is new to us, my cat and I.
                  by
                  • Verified Purchase
                  • Recommended
                  4 people found this helpful
                  This a/c is better than I expected. It’s quiet. It’s nice and cold.a little heavy but that was to...
                  This a/c is better than I expected. It’s quiet. It’s nice and cold.a little heavy but that was to be expected.
                  by
                  • Verified Purchase
                  • Recommended
                  3 people found this helpful
                  Looks great, work amazingly!!! Cools my one bedroom apartment like a champ. I have to turn the ...
                  Looks great, work amazingly!!! Cools my one bedroom apartment like a champ. I have to turn the temp up sometimes because it gets too cold and I live in an apartment built in the 1800s so that is pretty good. Definitely recommend for the quality. App and remote are very responsive.
                  by
                  • Verified Purchase
                  • Recommended
                  10 people found this helpful
                  Don’t buy this unit
                  Imagine the excitement of driving from Brooklyn to Manhattan and back, lifting the unit up 4 flights of stairs installing it and waiting for your room to cool during a heatwave. And it NEVER happens. Now having to uninstall carry it back down the stairs the. Drive it back. Ugh! A brand new unit just not working
                  by
                  Response from LGAnswersMar 15, 2021
                  We are sorry to hear that your unit is not working as designed. We are continuously working to improve the quality of our products, availability while anticipating market demands that drive customer satisfaction. If the problem hasn't resolve, please reach out to our support team on Twitter via @LGUSSupport or on Facebook at https://www.facebook.com/LGUSA/. We apologize for any inconvenience this caused. ^Venette LG
                    16 people found this helpful
                    So far so good
                    Wifi setup was easy. Installation was easy. Cools my space well. Isnt loud like other people have stated in their reciews.
                    by
                      • Recommended
                      6 people found this helpful
                      This is doing a great job cooling off our old home on these extremely hot day's we have been havi...
                      This is doing a great job cooling off our old home on these extremely hot day's we have been having in MN, ! We love it , We ended up putting it in our Bedroom window & It runs very quiet so you are not disturbed sleeping . I would recommend to anyone, it's been a very good unit so far.
                      by
                      • Verified Purchase
                      • Recommended
                      7 people found this helpful
                      Great cooling,, everything comes to install,,,
                      Great cooling,, everything comes to install,,,
                      by
                      • Verified Purchase
                      • Recommended
                      3 people found this helpful
                      Quirky Air Conditioner
                      I had bought a smaller 6000btu AC about 3 weeks before I bought this one, but sold that one to a neighbor at a loss because it was too noisy. So, I was excited for this 8000btu AC model, as I thought it would do the trick and it had all the options I wanted, at a reasonable price. I also bought a steel window bracket and extra foam to be sure that it was installed as correctly as possible. I runs well, for the most part and cools very well, BUT, it has a few quirks that I just am not happy with. It's somewhat noisy, and in energy saver mode, it turns on and off every 2 minutes... It runs for 30 seconds, off for 2 minutes, runs for 30 seconds, off for 2 minutes, and so on.It barely starts up again, and then shuts down. In regular cool mode, even on low speed, you can hear it running from 2 rooms away. Also, I had to unplug it, as I needed the outlet for a few minutes, so now I have to go through the process of setting up the wi-fi again. I'll need to look that up, as I forgot how. I gave it 4 stars, as it is well made, and cools well. It's also a nice looking unit, but I couldn't give it 5 stars because of the annoying quirks.
                      by
                        8 people found this helpful
                        More Sq footage covered
                        I was able in put this in myself, very simple the only issues I ran into was because I was installing it in a vertical sliding window. I have an open concept floor plan with about 750sq ft and a vaulted ceiling going has high as 20 ft. The 10,000 btu has cooled my entire downstairs (living room, dining room and kitchen) with no issues. It has also cooled the upstairs as well, obviously not as much but I can definitely tell a difference. Best purchase I’ve made this year. I haven’t used the WiFi setting, maybe one day but it seemed like a nice option to have.
                        by
                          • Recommended
                          6 people found this helpful
                          Product was well packed. Despite having awkwardly designed windows the unit was fairly easy to in...
                          Product was well packed. Despite having awkwardly designed windows the unit was fairly easy to install. It keeps the upstairs room in which it is in fairly cool. The dry feature is fairly nice, it takes some of the moisture out of the room on rainy days while cooling. So far this has been a good investment for upstairs!
                          by
                          • Verified Purchase
                          • Recommended
                          3 people found this helpful
                          Was surprised that installation of such a large AC was fairly easy, though instructions could hav...
                          Was surprised that installation of such a large AC was fairly easy, though instructions could have been a bit more detailed. Overall a great AC - I like the different settings (e.g. energy saver) and the remote makes things even easier. Cools my first floor pretty well.
                          by
                          • Verified Purchase
                          • Recommended
                          2 people found this helpful
                          This unit runs quiet and keeps my home comfortable; I haven't seen my power bill as yet so can gi...
                          This unit runs quiet and keeps my home comfortable; I haven't seen my power bill as yet so can give an update later. So far I am very happy with the product. My house is an older house and this unit was relatively easy to install in the double sash window.
                          by
                          • Verified Purchase
                          • Recommended
                          1 person found this helpful
                          I originally bought a 12000 BTU unit to cool a 550 Square foot garage, but it was too large for t...
                          I originally bought a 12000 BTU unit to cool a 550 Square foot garage, but it was too large for the window. I had to settle on the LG 8000 BTU unit thinking it may not be enough and I might have to buy two; one for the other window. Well to my surprise, it is working well enough to to keep our two puppies cool during the day and night.
                          by
                          • Verified Purchase
                          • Recommended
                          2 people found this helpful
                          LG AC is good. I love the fact that when it’s on you hardly hear it. I’d recommend it to my frien...
                          LG AC is good. I love the fact that when it’s on you hardly hear it. I’d recommend it to my friends and family!
                          by
                          • Verified Purchase
                          • Recommended
                          My current window a/c/ units were getting old and loud. I wanted a larger air conditioner that c...
                          My current window a/c/ units were getting old and loud. I wanted a larger air conditioner that could cool down most of an entire floor. I bought two of these. I have had them for about one month and they have exceeded expectations. The Wi-Fi feature is a nice option although the unit farther from the router has had trouble connecting. One thing a would recommend is buying a support bracket as they are fairly heavy. The instructions tell you to remove the outer case from the unit and install that in the window first but I installed it as is. Because of the weight and size of these I am considering leaving them in thru the winter. The boss might overrule that.
                          by
                          • Verified Purchase
                          • Recommended
                          1 person found this helpful
                          This air conditioner is great. It was light enough that I could lift it alone (I am petite and ca...
                          This air conditioner is great. It was light enough that I could lift it alone (I am petite and cannot lift much weight). The instructions were clear, and made the few parts of the assembly a breeze. This unit even came with a window stopper to stop the window from moving, which was a great thing to have for our older windows. This unit fan is on the louder side when in ECO mode, so some may not like that (the compressor is not as easy to hear)... but its not so loud that it cannot be ignored (think of it as a sleeping baby should stay sleeping, but you may have to turn tv up a couple notches). My husband likes that the app used for wifi is so user friendly. It shows the temperature inside, outside, as well as give you a daily report of the energy usage, and keeps track of the weekly usage (not sure if longer term as we have only had it a couple days). You can even program it to turn on/off on a schedule. He really likes that all the reports etc are on one screen, he does not have to go searching for them making it very user friendly. I also like how easily the filter is cleaned. We live in a high pollen area, and my kiddos are highly allergic, so I clean the filter on another air conditioner daily, this one has been on for a little under a week and I have yet to clean the filter (pictured below is today's filter).
                          by
                          • Verified Purchase
                          • Recommended
                          4 people found this helpful
                          Works well except cant program wifi
                          Works well except cant program wifi
                          by
                          • Verified Purchase
                          • Recommended
                          1 person found this helpful
                          Quick cooling with this unit. I always use it on the energy saving setting. I waited till the h...
                          Quick cooling with this unit. I always use it on the energy saving setting. I waited till the heatwave to rate this. It works very well, much better than the Frigidaire it replaced. Fairly quiet. There is a bit f noise when the compressor starts, but the fan is the quietest I’ve had in an air conditioner. My window was a little small, so we only used one of the wings and it works fine.
                          by
                          • Verified Purchase
                          • Recommended
                          Showing 1-30 of 3,136 reviews