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Customer Ratings & Reviews

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Customer reviews

Rating 4.2 out of 5 stars with 31 reviews

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Rating by feature

  • Value

    Rating 4.2 out of 5 stars

  • Quality

    Rating 4.2 out of 5 stars

  • Ease of Use

    Rating 4.3 out of 5 stars

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81%would recommend to a friend

Customers are saying

Customers frequently mention the 800 Sq. Ft. 15,000 BTU Smart Window Air Conditioner's excellent cooling capabilities, with many praising its speed and effectiveness in cooling their spaces. However, some customers noted that the unit can be noisy, particularly during certain operating modes. The occasional unexpected shut-off was also a point of concern for a few users. Overall, the strong cooling performance is a significant positive, though noise levels are a factor to consider.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 1 Showing 1-20 of 31 reviews
  • Rated 5 out of 5 stars

    Love my AC.Getting ready for summer heat

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Just got my AC yesterday and boy o boy its nice..I love the fact you can set it up to wifi and control it.Its a powerful unit which is needed in those hot summer days ahead..Its a big unit so you need two people to lift it.Set up was a breeze. Thank you LG for this great product.

    I would recommend this to a friend
    • Brand response from LGAnswers
      Posted .

      It is not everyday that we receive feedback as detailed and thoughtful as yours. But trust us when we say that it does not go unnoticed. Your comment has given valuable insight into the services that we provide at LG. We sincerely thank you for taking the time to share your thoughts with us. All the best, ~ Tanisha LG

  • Rated 5 out of 5 stars

    Amazing

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Purchase the window ac, and it works amazing. The installation was very easyand self explained. You definitely need two people to work on this while installing it.

    I would recommend this to a friend
  • Cons mentioned:
    Noise level

    Rated 4 out of 5 stars

    Great AC but needs frequent cleaning

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Powerful. Not super loud. Its probably overkill for my living room (its spacious but not huge) and works pretty well. Clean the filter often because if its not clean it loses power.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling
    Cons mentioned:
    Noise level

    Rated 4 out of 5 stars

    Works well with large rooms but loud.

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We have a very large master bedroom, this A/C cools it down very quickly, and will keep it cool. My issue is that it is loud. We live in the country so we're used to being able to hear a pin drop in the middle of the night. This A/C is loud, so it'll take some time getting used it. The unit is BIG. Make sure you measure everything before you purchase, and I recommend you get something that goes in your window to hold it up. I would not recommend relying on the window frame strength to hold this unit up, you may find your AC on the ground in short order if you have modern windows designed to "pop out" for easy cleaning. We tried the "eco" mode, and all it did was wake us up all night when the compressor kicks on. In this mode, it seems to ride a fine line on the temp control, say maybe .2 degrees. For example if it senses the temp going up .2 degrees the compressor comes on, then the temp goes down .2 and it shuts back off. Very annoying if you're trying to get a good night's sleep. But, with all said and done, instead of sweating bullets, this AC keeps our very large bedroom cool (over 400 sq feet).

    I would recommend this to a friend
  • Pros mentioned:
    Cooling
    Cons mentioned:
    Noise level

    Rated 4 out of 5 stars

    Great cooling, a bit noisy

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have had this AC for about 2 months now. It is great at cooling the entire space quick, and I love the ability to control from my phone. The only con is that it is a bit loud but not so much that it won't let me sleep.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Perfect for my needs! Exceeded my expectations!

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I put this unit in a kitchen window. My kitchen & living room is one big open area. It kept me cool & comfortable all summer, even in the 100* plus temps. My electric bill was lower than usual. I love the remote and the fact that it works with my Alexa.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 4 out of 5 stars

    reviewing lg 800 sq ft window air conditioner

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works wells to cool a large space - including a combined dining, kitchen, and living area. I am waiting for my electrical bill to see how much energy I am using to cool my space.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    So worth it!

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This saved me from having to upgrade the size of my condenser. Cools my living room with ease. It actually helps cool down the rest of the house faster with the fans on. Definitely recommend!

    I would recommend this to a friend
  • Cons mentioned:
    Noise level

    Rated 3 out of 5 stars

    Ehh, it’s okay.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It’s an average unit. Randomly shuts off in the middle of the night (every night) and the warmth in the room wakes me up. That’s annoying. It changes settings whenever it wants basically. My master bedroom is about 600 sq ft and it keeps it cool, but not cold which is a bummer for the price and description. I wouldn’t buy again nor recommend.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Love it

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love this air conditioner! It cools off my entire downstairs. And I love how I can turn it on/off and change the temp when I’m not home.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 4 out of 5 stars

    Air conditioning

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this air conditioner about a month ago and it cooldown really good

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Awesome!!!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This window unit is actually quieter than I thought and it keeps my living room cool. I give it five stars.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Eduardo

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent!!! Best Buy is my favorite electronics store, i’m going to be a Best Buy customer all my life.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Definitely recommend

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This cools my whole house. It is almost 2000sq. Ft and works great.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    LG 800 sq feet 15,000btu

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The A/C came in perfect at the time that the I.E. was experiencing high levels of heat. The LG kept our whole living room cool.

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Awesome A/C

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This Air Conditioner works fantastic and as advertised. It cools the entire main floor of my home which is exactly what we were hoping for

    I would recommend this to a friend
  • Cons mentioned:
    Noise level

    Rated 5 out of 5 stars

    Loving it

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Omg it blows so good. Don’t like the loudness of the on and off when it’s on energy safe mode but over all a great AC

    I would recommend this to a friend
  • Pros mentioned:
    Cooling

    Rated 5 out of 5 stars

    Wonderful

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works amazingly well. Keeps most of our main floor cool

    I would recommend this to a friend
  • Cons mentioned:
    Noise level

    Rated 5 out of 5 stars

    Great unit

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great unit. I love it. It's a little loud but that's not a problem

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    Do Not Buy

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This ac worked fine for about 2 months then started building up frost on the coils I contacted LG and was pretty much told to have it serviced myself which I did but it didn’t fix the issue. Don’t waste your money on anything LG because you will be left with a feeling ripped off

    No, I would not recommend this to a friend
    • Brand response from LG Digital Customer Care
      Posted .

      Hi, there. Thank you for sharing your experience with the LG Air Conditioner (LW1521ERSM) model. We understand your concern about dealing with issues like frost buildup on the coils, especially after already attempting a repair.

      We recommend checking the air filter to ensure it’s clean, as a clogged filter can sometimes contribute to frost buildup. Additionally, the thermostat or refrigerant levels may need to be checked by a technician. Please send us a private message on social media @LGUSSupport with your model and the details of the issue, and we’ll be happy to assist you in finding a resolution.

      We appreciate your feedback and are committed to working with you to ensure the best possible solution. ^Juvy LG

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