Installation Guide
Tools Needed:
- Adjustable wrench
- Level
- Screwdrivers (flat and Phillips)
- Pipe cutter
- Vacuum pump
- Manifold gauge
Step-by-Step Installation
- Choose Installation Location: Select a location with proper clearance (minimum 15cm from walls) and solid wall structure for mounting.
- Mount Indoor Unit: Install mounting plate securely on wall, ensuring it is perfectly level using a spirit level.
- Connect Refrigerant Pipes: Connect copper pipes between indoor and outdoor units, ensuring proper insulation and leak-free connections.
- Electrical Connection: Connect to a dedicated circuit with proper grounding (220-240V, 50Hz). Follow local electrical codes.
- Drainage Setup: Install drain hose with proper downward slope (minimum 1cm per meter) to ensure water drainage.
- Vacuum and Charge: Evacuate air and moisture from system using vacuum pump, then charge with specified refrigerant amount.
- Test Operation: Test all functions including cooling, heating, fan speeds, and remote control operation.
Specifications
| Model Series | AS12BQ4UA1 |
| Type | Split System Air Conditioner |
| Color | White / Platinum |
| Cooling Capacity | 12,000 BTU/h (3.5 kW) |
| Heating Capacity | 13,000 BTU/h (3.8 kW) |
| Noise Level (Indoor) | 19 dB (Silent Mode) |
| Control Type | Smart Remote with LCD Display |
| Energy Rating | A+++ (Most Efficient) |
| Power Requirements | 220-240V, 50Hz, 15A |
| Refrigerant | R32 (Eco-friendly) |
| Dimensions Indoor (HxWxD) | 29 x 84 x 21 cm |
| Dimensions Outdoor (HxWxD) | 54 x 78 x 29 cm |
| Weight Indoor/Outdoor | 9 kg / 28 kg |
Warranty Information
- Full Warranty: 2 years parts and labor
- Compressor Warranty: 5 years on Smart Inverter Compressor
- Additional Coverage: Optional extended warranty available
For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com
Key Features
Smart Inverter Compressor
LG's advanced inverter technology adjusts compressor speed to maintain desired temperature efficiently, reducing energy consumption by up to 70% compared to conventional units.
Dual Inverter Technology
Features a rotary inverter compressor with enhanced durability and efficiency, providing faster cooling/heating with minimal temperature fluctuations.
SmartThinQ Technology
Wi-Fi enabled for smartphone control via LG ThinQ app. Monitor energy usage, set schedules, and control temperature remotely from anywhere.
Plasma Air Purification
Advanced plasma air purification system removes up to 99.9% of bacteria, viruses, and allergens, providing cleaner and healthier indoor air.
Auto Clean Function
Automatically dries the indoor unit's heat exchanger after use to prevent mold and bacteria growth, maintaining air quality and unit efficiency.
4-Way Air Deflection
Multi-directional airflow with automatic swing louvers ensures even temperature distribution throughout the room without cold/hot spots.
Smart Operation Modes
AI Comfort Mode
Automatically adjusts temperature and fan speed based on room conditions and usage patterns
Energy Saving Mode
Optimizes operation to minimize energy consumption while maintaining comfort
Silent Operation
Ultra-quiet operation at 19dB for undisturbed sleep or work environments
Turbo Cooling/Heating
Rapid temperature adjustment for quick comfort when needed
Dehumidification Mode
Removes excess moisture without overcooling the room
Auto Changeover
Automatically switches between cooling and heating based on room temperature
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not turning on | Power issue, circuit breaker tripped, remote battery dead | Check power supply, reset circuit breaker, replace remote batteries |
| Poor cooling/heating | Dirty filters, low refrigerant, outdoor unit blocked | Clean filters, check for refrigerant leak, clear outdoor unit area |
| Water leaking indoors | Clogged drain pipe, improper installation slope | Clear drain pipe, ensure proper downward slope (1cm/m minimum) |
| Unusual noises | Loose parts, debris in fan, vibration | Tighten all screws, clear debris, check mounting stability |
| Foul odors | Dirty filters, mold growth in drain pan | Clean filters, run Auto Clean function, clean drain pan |
| Remote not working | Battery issue, signal obstruction, sensor problem | Replace batteries, ensure line of sight, check remote sensor |
Error Codes
- CH 01: Indoor unit sensor error - Check temperature sensors
- CH 02: Indoor coil sensor error - Check evaporator sensor
- CH 03: Communication error - Check wiring between units
- CH 04: Compressor error - Contact service center
- CH 05: Outdoor unit error - Check outdoor fan and sensor
- CH 06: High pressure error - Check refrigerant charge and outdoor unit airflow
- CH 07: Low pressure error - Check for refrigerant leak
- CH 08: Drain pump error - Check drain pump and float switch
Manual Downloads
Current Model Manuals
AS12BQ4UA1
12K BTU Smart Inverter AC
AS18BQ4UA1
18K BTU Smart Inverter AC
AS24BQ4UA1
24K BTU Smart Inverter AC
AS09BQ4UA1
9K BTU Smart Inverter AC
Popular Previous Models
AS12HQ4UA0
12K BTU Inverter AC
AS18HQ4UA0
18K BTU Inverter AC
AS24HQ4UA0
24K BTU Inverter AC
AS09HQ4UA0
9K BTU Inverter AC