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Energy Star Logo
3.8 | 6 Reviews

15,000 BTU Smart Wi-Fi Enabled Window Air Conditioner

LG LW1521ERSM

Features

  • Cooling: 15,000 BTU
  • Estimated Cooling Area: 800 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: 25.98"
  • Height: 17.68"
  • Depth: 28.11"
  • Energy Star Rated: Yes
  • Cooling Power: 15000 BTUs

See More

 
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Maximum Cooling

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

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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.

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Filter Check Reminder

The Clean Filter LED lights up to notify you that the filter needs to be cleaned.

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Made to Perfection

LG air conditioners add powerful performance and stable durability to perfectly match your frame.

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24-hour On/Off Timer

Up to 24 hours of operation time can be set, so that your air conditioner turns off when you plan it to.

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Measure Room

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Match Room Size to BTUs

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Quiet Operation

LG Window Air Conditioners operate at sound levels as low as 57dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.

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

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.

Filter Check Reminder The Clean Filter LED lights up to notify you that the filter needs to be cleaned.

Made to Perfection LG air conditioners add powerful performance and stable durability to perfectly match your frame.

24-hour On/Off Timer Up to 24 hours of operation time can be set, so that your air conditioner turns off when you plan it to.

Quiet Operation LG Window Air Conditioners operate at sound levels as low as 57dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.

Features

  • Cooling: 15,000 BTU
  • Estimated Cooling Area: 800 Sq. Ft.
  • LG ThinQ® Technology
  • 3 Cooling and 3 Fan Speeds With Auto Cool
  • Easy to use Electronic Controls
  • Automatically Restarts After Power Failure
COMPONENTS
Cord Length 72"
DIMENSIONS/WEIGHT
Fits Windows 29"-41" W x 19" H
Net Weight (lbs.) 112 lbs
Pallet Qty 3
Product Depth 28.11"
Product Height 17.68"
Product Width 25.98"
Shipping Depth 30.51"
Shipping Height 22.44"
Shipping Weight (lbs.) 127 lbs
Shipping Width 29.13"
Stuffing Quantity (20ft/40ft/40ft High) 135/300/300
TL QTY Floor Loaded 240
TL QTY w/ Pallets 90
ELECTRICAL RATINGS
Plug Type 115Volt/15Amp
Rated Amps (Cooling) 11.8
Voltage / 60 Hz 115V
Watts (Cooling) 1, 260
FEATURES
Air Deflection 4-Way
Air Discharge Type Top Discharge
Auto Restart Yes
Chassis Type Slide In-Out
Energy Saver Function Yes
Fan Speed Heating 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
Wi-Fi Connection Yes
PERFORMANCE
BTU Performance 15, 000
BTU performance (Cooling) 15,000
CEER 11.8
dBA Level (High/Mid/Low/Sleep) 61/59/57
Dehumid. (Pts/Hr) 3.3
Dry Air Flow (CFM) 505
EER 11.9
Est. Cooling Area (Sq. Ft.) 800
SUMMARY
Air Type Cooling
Type Window Air Conditioner
UPC CODES
UPC 048231605045
WARRANTY
Parts & Labor 1 Year
AIR CONDITIONER THINQ® SMART FEATURES
ThinQ® Smart Technology Yes

Quick Specs


  • Appearance

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

  • Dimensions

  • Width: 25.98"
  • Height: 17.68"
  • Depth: 28.11"

  • Features

  • Energy Star Rated: Yes

  • Cooling Capacity

  • Cooling Power: 15000 BTUs

Specifications Sheet

Energy Guide

Owner's Manual English 5,717K 10/31/2023

Owner's Manual Spanish 5,658K 10/31/2023

Get Adobe Reader

* Documents require Adobe Reader.

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.

3.8 out of 5

66% of reviewers recommend this product.

2 Stars

Filter light came on after two weeks

Lisa from Slidell 9/30/2023

Only had this unit for approximately two weeks and it now states that the filter needs to be cleaned. When we checked the filter it was free from dust/debirs. Also I ordered this unit online through Amazon from a third party. The description that they posted stated that the unit was for an 800 square foot room. When I received the unit the box stated it was for a 700 square foot room.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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Value

 
1 Stars

Terrible

Mikepar 7/21/2023

Bought one advertised as a 15000 was 14000 same model number but advertised wrong. Brought it home after few hours install came on then died. Went back to best buy didnt have one in stock shipped me one worked 2 days then would not power on no apologies and effort to resolve never again
Originally posted on lg.com

No, I do not recommend this product

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Value

 
5 Stars

cools very good easy install

stephen presley 7/16/2023

bought this a few weeks ago easy process. I would buy again
Originally posted on lg.com

Yes, I recommend this product

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5 Stars

Puts out very cold air.I would hiley recommend it

James morris 6/10/2023

Very nice unit. Puts out very cold air. Very nice .I would purchase it again.
Originally posted on lg.com

Yes, I recommend this product

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5 Stars

Are use the dehumidifier over the AC option

Apple Cool 8/24/2022

I use the dehumidifier over the AC option that actually cools the room quicker and texted me the other room and once thats completed I made an AC on for an hour to get a cooler than cool
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value

 
5 Stars

great a/c works great

wilfredo ayoroa 7/6/2022

very quiet very coooold.very dilent have wifi.i loved
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value