To properly experience our LG.com website, you will need to use an alternate browser or upgrade to a newer version of internet Explorer (IE10 or greater).
The LG.com website utilizes responsive design to provide convenient experience that conforms to your devices screen size. In order to get the best possible experience our LG.COM website please follow below instructions. If you’re using Internet Explorer 9 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE10 or greater).
We use cookies to enhance your user experience and the effectiveness of our marketing activities. By selecting "Accept All", you agree to all of our cookies. Select "Cookie Settings" to customize your cookie preference. Read our Privacy policy and Cookie policy.
-
- Functional Cookies
-
These cookies are used to provide you with convenient functions, such as product reviews and product video playback, during your web browsing, they also enable interaction with social media accounts.
-
- Analytics Cookies
-
These cookies allow our website to keep improving functions through website traffic analysis and to suggest personalized content for you.
-
- Advertising Cookies
-
These cookies enable us to show you ads and other content that we think is most attuned to your interests and digital behavior.
This function is disables on your cookie management.
To activate it, click on the link "Edit cookie settings" in the upper
right corner of this page.
ADD TO WISHLIST
Add items to your MYLG wishlist
View Wishlist
S3-W12TZXAA
component-copyModelName
LG 12,000 BTU, Single Split Air Conditioner
/
component-OBScountrySelectDesc
*titleText*
component-copyModel-toastMsg
See Retailer for Pricing
Limited Quantity Sale
Available QTY
*quantity* ea
-
Product Price(S3-W12TZXAA)
$*rPrice*$*rPromoPrice**discountPDPMsg*LG Members Price(S3-W12TZXAA)$*rMemberPrice*$*rMembershipPrice**discountPDPMsg*vip-price-message(S3-W12TZXAA)$*rPrice*$*rVipPrice**discountPDPMsg*OBS_CHEAPERPRICE_MSG $*cheaperPrice*
LG Members Price$*rMembershipPrice**rWelcomePriceDescription**rWelcomePriceTooltip*
$*rWelcomePrice*
Total
MSRP
$*improveTotalPrice*
component-previousPrice-prefix
$*rPrice*
$*rPromoPrice*
*discountMsg*
MSRP
$*rPrice*
See Retailer for Pricing
*obsMemberShipLinkStart*
OBS_MEMBERSHIP_MSG $*membershipPrice*
*obsMemberShipLinkEnd*OBS_LOWEST_PRICE_MARK_MSG
OBS_CHEAPERPRICE_MSG $*cheaperPrice*
MSRP
$
See Retailer for Pricing
OBS_MEMBERSHIP_MSG $*recommendedMembershipPrice*
┗ *modelName*
$*discountedPrice*
*userFriendlyName*
bundle-unable-text
$*discountedPrice*
component-discountMsg $*discountPrice*
component-protectYour
0 component-selectedItems
*modelName*
$*rPrice*.*rPriceCent*
$*rPromoPrice*.*rPromoPriceCent*
*discountMsg*
OBS_LOWEST_PRICE_MARK_MSG
*retailerPricingText*
*modelName*
$*rPrice*.*rPriceCent*
$*rPromoPrice*.*rPromoPriceCent*
*discountMsg*
OBS_LOWEST_PRICE_MARK_MSG
*retailerPricingText*
LG 12,000 BTU, Single Split Air Conditioner
$*rPrice*
$*rPromoPrice*
*discountMsg*
$
See Retailer for Pricing
vip-price-message
$
vip-price-message
$
Fast cooling, fast comfort
-
Inverter TechnologySave energy with inverter technology -
Fast Cooling and HeatingQuickly cool or warm your room -
4-Way Swing4-Way airflow for greater comfort -
Dual SensingStay cool wherever you are
Inverter Technology
Save energy with inverter
Inverter air conditioners adjust compressor speed to use energy efficiently, helping to reduce electricity bill.1)
Fast Cooling and Heating
Make your room cool or warm with one click
Delivers fast cooling or heating to quickly lower or raise the temperature on hot summer days.2)
4-Way Swing
Cool comfort in every corner
Distributes cool air evenly across the room with both vertical and horizontal airflow. Enjoy consistent comfort wherever you are.
Dual Sensing
Enjoy temperature optimized to where you are
Stay cool and comfortable right where you are. Dual Sensing detects temperatures near both the indoor unit and the remote controller to maintain optimal temperature throughout the room.3)
Smart Diagnosis
Smart LED helps you get smart answers
Simply call LG customer service, give the LED code, and service engineers will provide a solution.
-
![Image of an LG air conditioner blowing cool air with an auto restart feature.]()
Auto restart operation
If the power cuts off, your unit resumes its previous operation shortly after the power is restored.
-
![Image of an LG air conditioner with a remote control showing a 24-hour timer function.]()
24-Hour on/off timer
Up to 24 hours of operation time can be set, so that your air conditioner turns on and off whenever you want.4)
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
-
![LG air conditioner operating cooling mode based on room temperature via the smart button.]()
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5) -
![LG air conditioner operating heating mode based on room temperature via the smart button.]()
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5) -
![LG air conditioner operating dry mode based on room temperature via the smart button.]()
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5) -
![LG air conditioner operating fan mode based on room temperature via the smart button.]()
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
Smart operation knows your needs
Cooling, Heating, Fan and Drying Mode are automatically set based on the actual room temperature by simply pushing the 'Mode' button on the remote controller.5)
Voltage Protection
Protection against voltage fluctuation
Enjoy durable air conditioner that can help protecting the unit from voltage fluctuations.6)
Sleep Mode
Sleep mode keeps you comfortable
Experience up to 10 hours of restful sleep with temperature control for lasting comfort.
Light Off
Peaceful nights with the light off
Enjoy a deep sleep without a bothersome air conditioner light.
*The images and videos above are staged and created for illustrative purposes to enhance understanding. There may be variations depending on the actual product installation environment.
1) Inverter Technology
- The graphic shown is for illustrative purposes only and does not represent real-world data.
2) Fast Cooling and Heating
- The remote controller display image may be changed without notice.
- Jet Mode operates at maximum airflow and maximum compressor output.
- It continues to operate before the customer deactivates this function.
- Product performance may vary depending on installation and usage conditions.
- Excessive cooling and heating operation may increase power consumption.
3) Dual Sensing
- When using the Dual Sensing function, point the remote control toward the product for smooth signal reception.
- This function automatically deactivates after 8 hours of operation.
- The actual ambient temperature may differ if the remote control is exposed to direct sunlight or is near hot or cold objects.
- Depending on environmental conditions such as distance and location, if communication between the remote control and the product is not stable, the Dual Sensing function may deactivate.
4) 24 hours on/off timer
- The remote controller display image may be changed without notice.
5) Smart Operation
- The remote controller display image may be changed without notice.
6) Voltage Protection
- Date 2025.09 LG air conditioner testing chamber
- Test Condition: Indoor DB 32℃/WB 23℃, Outdoor DB 48℃/29℃ Setting on cooling mode, This condition was tested by applying high voltage/low voltage(230V ±10%) to operate the product.
- Test Method: Based on LG testing standards (LG(67)-F0-6037), the outdoor heat exchanger was 30% shielded under the above temperature condition, and the product was tested for normal continuous operation while changing the voltage and operating mode(4 hours).
- Test Model: S3-Q12TZXAC, S3-Q18TZXAC, S3-Q24TZXAC
- Test Result: It was confirmed that all products tested under the proposed test condition operated normally and continuously.
- The performance result may vary depending on actual usage conditions.
- Continuous operation is possible within the tested voltage range, but the product's performance may degrade.
1) Inverter Technology
- The graphic shown is for illustrative purposes only and does not represent real-world data.
2) Fast Cooling and Heating
- The remote controller display image may be changed without notice.
- Jet Mode operates at maximum airflow and maximum compressor output.
- It continues to operate before the customer deactivates this function.
- Product performance may vary depending on installation and usage conditions.
- Excessive cooling and heating operation may increase power consumption.
3) Dual Sensing
- When using the Dual Sensing function, point the remote control toward the product for smooth signal reception.
- This function automatically deactivates after 8 hours of operation.
- The actual ambient temperature may differ if the remote control is exposed to direct sunlight or is near hot or cold objects.
- Depending on environmental conditions such as distance and location, if communication between the remote control and the product is not stable, the Dual Sensing function may deactivate.
4) 24 hours on/off timer
- The remote controller display image may be changed without notice.
5) Smart Operation
- The remote controller display image may be changed without notice.
6) Voltage Protection
- Date 2025.09 LG air conditioner testing chamber
- Test Condition: Indoor DB 32℃/WB 23℃, Outdoor DB 48℃/29℃ Setting on cooling mode, This condition was tested by applying high voltage/low voltage(230V ±10%) to operate the product.
- Test Method: Based on LG testing standards (LG(67)-F0-6037), the outdoor heat exchanger was 30% shielded under the above temperature condition, and the product was tested for normal continuous operation while changing the voltage and operating mode(4 hours).
- Test Model: S3-Q12TZXAC, S3-Q18TZXAC, S3-Q24TZXAC
- Test Result: It was confirmed that all products tested under the proposed test condition operated normally and continuously.
- The performance result may vary depending on actual usage conditions.
- Continuous operation is possible within the tested voltage range, but the product's performance may degrade.
FAQs
-
Q.
What is the difference between Inverter and Non-Inverter air conditioners?
-
A.The fundamental difference lies in how the compressor operates to control the temperature. Non-Inverter air conditioners have compressors that run at a constant speed regardless of the indoor temperature, turning off once the desired temperature is reached and restarting when it rises. In contrast, Inverter air conditioners operate by dynamically adjusting the compressor speed—running faster when the room is warm and slowing down as the temperature drops to maintain a steady climate.
-
Q.
How can I save energy while using the air conditioner?
-
A.You can save energy by selecting appropriate temperatures when cooling and heating and by regularly cleaning the filters to reduce unnecessary energy wastage. It is recommended to set air conditioner to 25℃ for cooling and 21℃ for heating.
-
Q.
How can I clean and maintain the air conditioner?
-
A.For clean air and strong performance, regular filter cleaning is recommended, ideally every two weeks. Wash the filter with lukewarm water or use a neutral detergent for more stubborn dirt. After washing with water, dry the filter in the shade away from direct sunlight. You can use Auto Cleaning7) function for more convenient air conditioning management that automatically dries the AC interior when you turn it off.8)
7) Depending on the country/model, the Auto Cleaning function may not be available.
8) If you turn off the unit, the fan continues to run for 30 minutes. The function is set to on when shipped from the factory. The function may be changed without notice. Please check the manual enclosed with the product for details.
-
Q.
How do I install the air conditioner?
-
A.Mini-split air conditioners require professional installation, while window or portable air conditioners do not require ductwork. They must be installed by a professional engineer or technician, as the installation process involves drilling through walls to connect the indoor and outdoor units, as well as electrical wiring.
Energy Saving
-
- Energy Display
- N/A
- Energy Grade
- N/A
-
- Radar Sensor
- N/A
- kW Manager
- N/A
-
- Energy Saving(Cooling)
- Yes
GENERAL
-
- Product Type
- Wall Mounted
- Indoor Unit Dimension_WxHxD(mm)
- 913x309x204
-
- Cooling Power Consumption Rated/Min(W)
- 1150
- Heating Capacity Max(W)
- 3800
-
- Cooling Capacity Max(W)
- 3750
- Heating Capacity Rated/Min(W)
- 3500
-
- Cooling Capacity Rated/Min(W)
- 3450 / -
- Heating Consumption Power Rated/Min(W)
- 944
-
- Rated Input Voltage(V, Hz)
- 220 ~ 240, 50
- Outdoor Unit Dimension_WxHxD(mm)
- 787x290x498
-
- Sound Pressure(Cooling) SH/H/M/L/SL(dB(A))
- 55 / 55 / 55
- Indoor Unit Weight(kg)
- 9.2
-
- Outdoor Unit Weight(kg)
- 22.0
- Product Type II
- Inverter
-
- HVAC Type
- H/P
- Refrigerant Type
- R32
COOLING
-
- Fan Speed
- 5 Steps
- Airflow direction control (Left & Right)
- Manual
-
- Comfort Air
- N/A
- AI Air
- N/A
-
- Power Mode
- Yes
- Airflow direction control (Up & Down)
- Yes
-
- 4way
- Up-Down
HEATING
-
- Power Heating
- Yes
AIR PURIFYING
-
- PM 1.0 Sensor
- N/A
- Ionizer
- N/A
-
- Air Purifying Display
- N/A
COMPLIANCE
-
- Manufactured by
- Definable Spec Only in LG.COM
- Launching Month (YYYY-MM)
- 2026-02
-
- Product Model Name
- S3-W12TZXAA.DXWAEXP
- Product Type & Model Name
- S3-W12TZXAA.DXWAEXP
-
- Manufacturer (Importer)
- TCL, LG전자(주)
- Imported by
- Definable Spec Only in LG.COM
HYGIENE
-
- UV Nano
- N/A
- Auto Cleaning
- Yes
-
- Heat Exchanger Cleaning
- N/A
CONVENIENCE
-
- ThinQ(Wi-Fi)
- N/A
- Reservation
- Yes
-
- Smart Diagnosis
- Yes
- Remote Controller
- Yes
-
- On/Off Reservation(24Hr)
- Yes
- Low Noise
- N/A
-
- Fan Mode
- N/A
- Auto Restart
- Yes
-
- Forced Switch Operation
- Yes
- Sleep Timer+
- N/A
-
- Deep Sleep
- N/A
- DUAL Vane
- N/A
FILTER
-
- Ultra Fine Dust Filter
- N/A
- Allergy Filter
- N/A
-
- Fine Dust Filter
- N/A
DEHUMIDIFICATION
-
- Dehumidification
- Yes
DESIGN
-
- Color(Body)
- White
- Color(Discharge)
- White
-
- Display
- 88LED
OUTDOOR UNIT
-
- Outdoor Unit Model Name
- S3UW12TZXAA.DXWAEXP
BAR CODE
-
- Bar Code
- 8806096776063
RAC B2B Function
-
- PI485 Module
- N/A
- Dry Contact
- N/A
-
- Wired Remote Controller
- Yes
INSTALLATION
-
- Power Cable
- Yes
What people are saying
*Required field
QUESTIONS? LET US HELP
View S3-W12TZXAA Product Support
Simply choose a support option from the icons below:
Find Locally
*itemNum2*
*distance* KM
*addressLine1Info*
Pin Code *pinCode*
Std Code *stdCode*
*wtbFaxNo*
Open Hour
*wtbTime*
*productCode*
*distance* KM
*addressLine1Info*
*distance* KM
*wtbFaxNo*
Open Hour
*wtbTime*
Product Category
*productCode*
No Results
TIP: Try entering a location or using your current location.
Please enter a location.
Suggested Route
There is no data.
Please retry to enter zip code.
Please enter a location.
$*rPrice*.*rPriceCent*
$*rPromoPrice*.*rPromoPriceCent*
*discountMsg*
*retailerPricingText*
OBS_MEMBERSHIP_MSG $*siblingMembershipPrice*
*obsMemberShipLinkEnd*
*reviewUploadText*