Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your LG 1.5HP Inverter Cool/Heat Split System Air Conditioner, model S4-W12JA3AE. Please read this manual thoroughly before using the appliance and retain it for future reference.
Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, or injury to persons when using this appliance.
- Ensure the power supply matches the specifications of the unit.
- Do not operate the air conditioner with wet hands.
- Keep children away from the unit.
- Do not insert objects into the air inlet or outlet.
- For cleaning, always turn off the power and unplug the unit.
- Installation and repairs should only be performed by qualified service personnel.
Product Overview
The LG S4-W12JA3AE is a 1.5HP Inverter Cool/Heat Split System Air Conditioner designed for efficient temperature control. It features an Inverter Compressor for enhanced energy efficiency and quiet operation.
Figure 1: Front view of the LG S4-W12JA3AE indoor unit. This image displays the sleek white design, the LG logo, "DUAL Inverter" branding, and the "Inverter Compressor 10 Year Warranty" badge on the left side.
Figure 2: Side view of the LG S4-W12JA3AE indoor unit. This perspective highlights the depth and curved design of the unit, showing the air intake grille on the top and side.
Setup and Installation
Installation of this split system air conditioner requires professional expertise. It is recommended to contact a certified technician for proper installation to ensure optimal performance and safety.
Pre-Installation Checks:
- Verify the power supply voltage and circuit breaker capacity.
- Ensure adequate space for both indoor and outdoor units for proper airflow and maintenance.
- Check for a stable and level mounting surface for the indoor unit.
Key Installation Steps (Professional Installation Recommended):
- Mount the indoor unit securely on the wall.
- Install the outdoor unit on a stable base, ensuring proper drainage.
- Connect refrigerant piping between the indoor and outdoor units.
- Perform electrical wiring connections according to local codes and the wiring diagram.
- Evacuate the refrigerant lines and check for leaks.
- Test the unit's operation in both cooling and heating modes.
Operating Instructions
Your LG air conditioner can be operated using the supplied remote control. Familiarize yourself with the remote control functions for optimal use.
Basic Operation Modes:
- Cooling Mode: Select the snowflake icon. Adjust temperature using the up/down arrows.
- Heating Mode: Select the sun icon. Adjust temperature using the up/down arrows.
- Fan Mode: Select the fan icon. The unit will circulate air without cooling or heating.
- Dry Mode: Select the water drop icon. Reduces humidity in the room.
- Auto Mode: The unit automatically selects the appropriate mode (cooling or heating) based on the room temperature.
Adjusting Settings:
- Temperature: Use the TEMP ▲/▼ buttons on the remote.
- Fan Speed: Press the FAN SPEED button to cycle through available speeds (Auto, Low, Medium, High).
- Swing Function: Use the SWING button to adjust the vertical airflow direction.
- Timer Function: Refer to the remote control manual for detailed instructions on setting the ON/OFF timer.
Maintenance
Regular maintenance ensures the longevity and efficient operation of your air conditioner.
Air Filter Cleaning:
The air filter should be cleaned every two weeks or more frequently depending on usage and air quality.
- Turn off the power supply to the unit.
- Open the front panel of the indoor unit.
- Remove the air filters.
- Clean the filters with a vacuum cleaner or wash them with lukewarm water and a mild detergent.
- Allow the filters to dry completely in a shaded area before reinstalling.
- Close the front panel.
Figure 3: Front view of the LG S4-W12JA3AE indoor unit with the front panel open, revealing the internal air filters. This illustrates the access point for routine filter cleaning.
Outdoor Unit Maintenance:
- Keep the area around the outdoor unit clear of obstructions, debris, and vegetation.
- Periodically clean the outdoor coil fins with a soft brush or vacuum cleaner.
- Ensure the drainage hose is not blocked.
Professional Servicing:
It is recommended to have your air conditioner professionally serviced at least once a year to check refrigerant levels, clean coils, and inspect electrical connections.
Troubleshooting
Before contacting service, refer to the following table for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power; circuit breaker tripped; remote control batteries dead. | Check power supply; reset circuit breaker; replace remote control batteries. |
| Insufficient cooling/heating | Dirty air filter; blocked outdoor unit; wrong mode selected; temperature setting too high/low. | Clean air filter; clear obstructions from outdoor unit; select correct mode; adjust temperature. |
| Water leakage from indoor unit | Blocked drain hose; improper installation. | Check and clear drain hose; contact a professional for inspection. |
| Unusual noise | Loose parts; foreign objects; compressor noise (normal). | Check for loose parts; remove foreign objects; consult manual for normal operating sounds. |
If the problem persists after attempting these solutions, please contact LG customer support or a qualified service technician.
Specifications
| Feature | Detail |
|---|---|
| Brand | LG |
| Model Name | S4-W12JA3AE |
| Type | Split System Air Conditioner |
| Cooling Capacity | 11352 BTU/hr (1.5 HP) |
| Technology | Inverter Compressor (Dual Inverter) |
| Functions | Cool/Heat |
| Indoor Unit Dimensions (D x W x H) | 26.1 x 90.5 x 38.3 cm |
| Indoor Unit Weight | 10.6 kg |
| Filter Type | Fiberglass Filter |
| Color | White |
| Power Source | Corded Electric |
| Batteries Required | No (for main unit) |
Warranty and Support
Warranty Information:
This LG air conditioner comes with a Limited Warranty. Specific terms and conditions, including duration and coverage, are provided with your purchase documentation. Please retain your proof of purchase for warranty claims.
The Inverter Compressor typically carries an extended warranty, often 10 years, as indicated by the product branding.
Customer Support:
For technical assistance, service requests, or warranty inquiries, please contact LG Customer Service. Contact details can usually be found on the LG official website for your region or on the warranty card included with your product.
When contacting support, please have your model number (S4-W12JA3AE) and serial number ready.