LG KNSAC121B Mega Wall Mounted Indoor Unit with 11000 BTU Cooling Capacity, 12000 BTU Heating Capacity, 115 Volts and Remote Control in White

LG's devotion to providing efficient ductless solutions can be seen across their entire catalog. The KNSAC121B is a part of LG's low-profile wall mounted Mega product line. With a variety of operating modes and helpful functions, this well-rounded mini split indoor unit is an easy choice for any system.

• Built-In Wi-Fi
• Jet Temperature Control
• Sleep Mode

Air Flow Options

This unit gives you two options for automating air flow. In Swing Mode, the unit will rotate through two air flow directions to ensure consistent comfort in every corner of your room.

Quiet Design

The unit can operate at volumes as low as 21 dB thanks to a combination of cutting edge components. LG utilizes a cross flow fan design that reduces noise levels by limiting the surface pressure of air flow.

Self-Cleaning Coil

The unit features a self-cleaning heat exchanger coil that automatically removes dirt and moisture. This helps to prevent unpleasant odors and to combat the formation of mold.

Automated Operation

Auto operation mode continually compares your zone's current and desired temperatures and uses that data to intelligently adjust the unit's fan speed and refrigerant flow to provide optimal comfort.

Dehumidify

LG's indoor units include a dehumidifying operation mode. In this mode, the unit's internal sensors monitor temperature and modify the set point and fan speed to remove moisture from the air.

Improved Air Quality

The unit indoor unit uses a dual filtration system to keep your air clean. A washable anti-fungal filter is the first line of defense against dust and bacteria.

Hot-Start

When the Hot-Start function is enabled, the unit's fan will not engage until the outdoor condenser has had the opportunity to warm the indoor coil. This prevents the unit from blowing cold air during heating operations.

*Note Outdoor Unit Required to Operate

Matching Products

• Matching Outdoor Unit KUSAC121B

Why Buy LG KNSAC121B Mega Wall Mounted Indoor Unit

• Energy Efficiency: Inverter technology utilizes a variable-speed compressor and electronic expansion valve to precisely control refrigerant flow, reducing energy usage while maintaining stable indoor temperatures.
• Quiet Operation: A specially designed cross-flow fan reduces air pressure, allowing the unit to operate as quietly as 21 dB for a more peaceful indoor environment.
• Smart Home Integration: With built-in Wi-Fi, the unit can be easily managed via smart devices using the LG SmartThinQ® app for remote control and monitoring.
• Self-Cleaning Coil: The heat exchanger coil automatically cleans itself by removing moisture and debris, helping to eliminate odors and inhibit mold growth.
• Fast Comfort: Jet Cool and Jet Heat modes deliver quick temperature adjustments by temporarily increasing fan speed and adjusting the set point for rapid comfort.
• Improved Air Quality: A dual-stage filtration system, featuring a washable anti-fungal filter, captures dust, allergens, and bacteria to promote cleaner, healthier air.
• Enhanced Durability: A corrosion-resistant Gold Fin coating on the heat exchanger protects against wear, extending the unit’s life and performance.

• Convenient Features: Sleep Mode and Timer functions support energy-efficient operation by adjusting settings at night and allowing scheduled control, while Dehumidify mode removes excess moisture to improve comfort.

Frequently Asked Questions

Q: Why won't my unit turn on?

A: If your unit won't turn on:

• Check the power supply: Make sure the unit is securely plugged into a functioning, grounded wall outlet.
• Inspect the circuit breaker: Look at your home's breaker box to see if the breaker for the air conditioner has tripped. If it has, reset it.
• Check the GFCI plug (if applicable): Press the "Test" button, then the "Reset" button to restore power.
• Test the remote control: Ensure the remote has working batteries and that nothing is blocking the signal between the remote and the unit.

Q: Why isn’t my unit cooling or heating properly?

A: Your unit might not be cooling or heating properly because:

Dirty air filters: Clean the washable anti-fungal filters to improve airflow and performance.

• Blocked condenser: Remove any debris, such as leaves or dirt, from around the outdoor condenser unit.
• Incorrect thermostat settings: Make sure the thermostat is set to the right mode (Cool or Heat) and the desired temperature.
• Blocked vents: Ensure that air intake and output vents on the indoor unit are not obstructed.
• Frozen evaporator coils: Ice buildup may indicate dirty filters or low refrigerant. Turn off the unit, let the ice melt, clean the filter, and restart the system.

Q: Why is my unit leaking water?

A: Leaking water might be caused by:

• Clogged drain line: Debris in the condensate drain pipe can cause water to back up and leak from the indoor unit.
• Improper installation: If the unit isn't level, it may not drain properly. A professional installer may be needed to correct this.

Q: Why is my unit making unusual noises?

A: Your unit might be making unusual noises because:

• Normal operating sounds: Some noise is expected. You can find examples of normal sounds on the LG support website for comparison.
• Loose parts: Rattling may indicate loose components that need tightening.
• Fan problems: A damaged fan blade or faulty motor can produce unusual sounds.
• Refrigerant leak: A hissing noise may suggest a refrigerant leak and should be addressed by a professional.

Q: Why is my remote control not working?

A: If your remote control isn't working:

• Check the batteries: Replace them with the correct type as outlined in the owner’s manual.

• Check for interference: Strong fluorescent lighting can interfere with the remote's infrared (IR) signal. Try operating the remote in a different lighting condition.