S4NQ12JA3AC - Air-conditioner LG - Free user manual and instructions
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| Product Type | Split Air Conditioner (Indoor and Outdoor Units) |
| Cooling Capacity | 12,000 BTU (3.5 kW) |
| Heating Capacity | 12,000 BTU (3.5 kW) Heat Pump |
| Power Supply | 208-230 V / 60 Hz, Single Phase |
| Indoor Unit Dimensions (W x H x D) | 800 x 285 x 190 mm |
| Outdoor Unit Dimensions (W x H x D) | 720 x 495 x 260 mm |
| Indoor Unit Weight | 9.5 kg |
| Outdoor Unit Weight | 27 kg |
| Refrigerant Type | R32 |
| Energy Efficiency (SEER) | 15.0 |
| Functions | Cool, Heat, Dry (Dehumidify), Fan, Auto, Sleep, Timer, Turbo, Quiet Mode |
| Remote Control | Yes, included with LCD display |
| Air Swing | Auto up/down swing, manual left/right |
| Filter | Washable reusable dust filter (recommended cleaning every 2 weeks) |
| Self-Cleaning | Yes, evaporator self-cleaning after operation |
| Noise Level (Indoor / Outdoor) | 25 dB(A) / 45 dB(A) (low speed) |
| Safety Features | Auto restart, child lock, overheat protection, refrigerant leak detection |
| Installation | Professional installation required (wall mount, brazed connections) |
| Maintenance | Clean filter monthly; professional service every 1-2 years for coil and fan |
| Spare Parts & Repairability | Widely available: filters, remote, fan motor, compressor, PCB boards (high repairability) |
Frequently Asked Questions - S4NQ12JA3AC LG
How do I clean the air filter?
Open the front panel, remove the filter, vacuum or wash with mild soap and water, dry completely before reinstalling. Perform every 2 weeks for optimal performance.
Why is my LG AC not cooling properly?
Check if the filter is dirty, ensure the thermostat is set to a lower temperature, verify the outdoor unit is not obstructed, and confirm the mode is set to Cool. If problem persists, contact service.
Can I use an extension cord for the AC?
No, never use an extension cord or power strip. The AC must be plugged directly into a dedicated wall outlet with proper grounding to avoid fire hazard.
What does the 'Sleep Mode' do?
Sleep Mode gradually adjusts the temperature and fan speed to provide comfort while saving energy. It also reduces noise, making it ideal for nighttime use.
How do I reset the remote control?
Press the Reset button (usually inside the battery compartment) using a pin, or remove batteries and reinsert after 30 seconds. Then set the mode again.
What is the recommended temperature for cooling?
For energy efficiency and comfort, set the thermostat between 24°C (75°F) and 26°C (78°F) during cooling. Each degree lower increases consumption by 6-8%.
How often should I have the AC professionally serviced?
Professional servicing is recommended every 1-2 years to clean coils, check refrigerant levels, inspect electrical components, and ensure optimal performance.
What does the 'Self-Cleaning' function do?
After turning off the AC in cooling or dry mode, the Self-Cleaning function runs the fan to dry the evaporator coil, preventing mold and bacteria growth. It runs for about 10 minutes.
My AC shows error code 'CH 01' - what does it mean?
Error code CH 01 indicates a room temperature sensor failure. Turn off the unit, wait a few minutes, and restart. If the error persists, contact a technician.
Can I install the AC myself?
No, this AC requires professional installation due to the need for vacuum evacuation, refrigerant lines, and electrical connections. Improper installation voids warranty.
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