Customer reviews from lg.com
LG - 1,000 Sq. Ft. 18,000 BTU 230V Smart Window Air Conditioner - White
Average customer rating
4.6 out of 5
4.6
(25 Reviews)
Open Ratings Snapshot
Rating breakdown 25 reviews
5 Stars
19
4 Stars
3
3 Stars
2
2 Stars
0
1 Star
1
92%of customers recommend this product. 
(
11 out of 12
)
Best Buy Privacy Policy
Customer Reviews for LG - 1,000 Sq. Ft. 18,000 BTU 230V Smart Window Air Conditioner - White
Customer Rating
5 out of 5
5
LG replacement the best
on October 27, 2024
Posted by: Jose49
As did the previous LG window a/c, for over 10 years, it's replacement functionswonderfully.
Quality
5 out of 5
5
Features
5 out of 5
5
Value
5 out of 5
5
Response from lg.comBy LGFebruary 27, 2026
Hi, Jose. Thank you for sharing your experience with us. It’s great to hear that your new LG Air Conditioner (LW1821ERSM) model is functioning wonderfully, just like your previous LG window air conditioner that served you well for over 10 years. This unit is a stunning unit designed for powerful cooling performance with its Energy Saver mode, multiple fan speeds, and SmartThinQ® compatibility, allowing you to control it from your phone for added convenience. Its reliable airflow and efficient operation make it an excellent choice for keeping your space comfortable. If you need further assistance, please email us at lgdigitalcare@lg.sprinklrsupport.com. #Life’s Good❤️ ‑LG Digital Care Team ^Juvy
Written by a customer while visiting lg.com
Customer Rating
3 out of 5
3
Cheap plastic cover produces loud noise
on August 9, 2024
Posted by: jerrycast
from Albany, NY
[This review was collected as part of a promotion.] It does the job, but the plastic cover that goes around the front of the unit is cheap plastic that tends to vibrate excessively and produces a very distracting noise.
Pros: ease of use, Features/Settings
Quality
2 out of 5
2
Features
4 out of 5
4
Value
3 out of 5
3
Response from lg.comBy LGAugust 12, 2024
Hi, Jerry. Thanks for sharing your thoughts on the LG Air Conditioner (LW1821ERSM) model. We’re glad to hear that the unit meets your needs. However, excessive vibration and noise from the plastic cover can be quite distracting. We strive to provide top-notch products that exceed our customers' needs and expectations.

To address this, try tightening any loose screws or fittings around the cover. Sometimes, securing the cover more firmly can reduce vibrations and noise.

Please send us a private message on social media @LGUSSupport if you continue to experience issues or need further assistance. We’re here to help and ensure you get the best performance from your LG unit. ^Juvy
Written by a customer while visiting lg.com
Customer Rating
5 out of 5
5
Good Product
on July 15, 2024
Posted by: Sam90
I bought it almost a year ago and is still running smoothly.
Written by a customer while visiting lg.com
Customer Rating
4 out of 5
4
Cools as expected
on September 24, 2023
Posted by: Jhco
from SC
Verified Purchase:Yes
I had this unit about a month, am well satisfied with it.
Pros: ease of use
Written by a customer while visiting lg.com
Customer Rating
4 out of 5
4
Cools Beautifully
on September 13, 2023
Posted by: Lyn74
from Norwood PA
Verified Purchase:Yes
We purchased this air conditioner couple of weeks ago. It is Big and beautiful. It cools beautifully but one of the faults I have is the snapping sounds it makes when it kicks in and out constantly. It is in our living room where we both sit and it constantly clicks and clicks. The second fault is I cannot adjust the vents. I originally got them to point up but I cannot move them down, I'm afraid they will break they're that tight. Otherwise, it's great.
Pros: Performance
Quality
5 out of 5
5
Features
4 out of 5
4
Value
4 out of 5
4
Written by a customer while visiting lg.com
Customer Rating
5 out of 5
5
I love the control anywhere features
on September 7, 2023
Posted by: Demon56
Verified Purchase:Yes
[This review was collected as part of a promotion.] It’s been nearly a month since I got my 18,000 btu AC and this beast will freeze you I love it
Written by a customer while visiting lg.com
Customer Rating
5 out of 5
5
Good service
on August 25, 2023
Posted by: Jhco
Verified Purchase:Yes
[This review was collected as part of a promotion.] Work good after two weeks use, a little louder than the previous units
Written by a customer while visiting lg.com
Customer Rating
3 out of 5
3
an exact fit
on August 15, 2023
Posted by: Girl from Ipanema
from Millville, NJ
Verified Purchase:Yes
[This review was collected as part of a promotion.] This unit is quiet and cools one room to cold and doesnt distribute the cool air like my previous unit. The energy efficient newer units are not cooling efficiently unfortunately
Pros: ease of use, Style/Design
Quality
5 out of 5
5
Features
3 out of 5
3
Value
5 out of 5
5
Response from lg.comBy LG Customer Experience teamCustomer CareAugust 15, 2023
Hey there. We appreciate you bringing this to our attention. We want to ensure that you are getting a quality experience with using your 18,000 BTU Smart Wi-Fi Enabled Window Air Conditioner. Furthermore, wee would be pleased to investigate this further, but we must switch to a platform that allows back-and-forth conversation. Send us a private message on Facebook or Twitter with the handle @LGUSSupport and your contact information, and we'll be pleased to see what we can do for you. Thank you. ^Anthony
Written by a customer while visiting lg.com
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