LG Refrigerator Inverter Compressor User Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your refrigerator inverter compressor. Please read this manual thoroughly before attempting any procedures. Inverter compressors are advanced components designed for energy efficiency and precise temperature control in modern refrigerators.

2. Available Models

This manual covers the following refrigerator inverter compressor models:

• BSA075NHMV (New machine dismantling)
• BMK110NAMV (New machine disassembly)
• BMH130NCMV (New machine dismantling)
• FLD165NBMA (New machine dismantling)
• FLD165NCMA (New machine disassembly)
• FLD165NBMA (Brand new)
• FLD165NCMA (Brand new)

Note: "New machine dismantling" or "new machine disassembly" refers to compressors removed from new appliances, while "brand new" indicates unused, factory-sealed units.

3. Specifications

The following table outlines general specifications for the inverter compressors. Specific details may vary slightly by model. Always refer to the label on your specific compressor for exact values.

Visual reference for compressor labels:

4. Installation Instructions

WARNING: Installation of refrigerator compressors should only be performed by qualified and certified technicians. Improper installation can lead to serious injury, property damage, or appliance malfunction.

1. Safety First: Ensure the refrigerator is completely disconnected from the power supply before beginning any work.
2. Refrigerant Handling: Refrigerant R600a is flammable. Ensure proper ventilation and avoid open flames or ignition sources. Follow all local regulations for refrigerant recovery and handling.
3. Discharge System: Safely discharge any remaining refrigerant from the system using appropriate recovery equipment.
4. Remove Old Compressor: Disconnect electrical wiring and refrigerant lines from the old compressor. Carefully remove the old unit.
5. Install New Compressor: Position the new compressor securely in the designated location.
6. Connect Refrigerant Lines: Braze or connect the refrigerant lines to the new compressor, ensuring leak-free connections. Use appropriate brazing techniques and materials for R600a systems.
7. Evacuate System: Evacuate the refrigeration system to a deep vacuum to remove all non-condensable gases and moisture.
8. Recharge System: Recharge the system with the correct type and amount of R600a refrigerant as specified by the refrigerator manufacturer.
9. Electrical Connections: Connect the electrical wiring to the new compressor according to the refrigerator's wiring diagram. Ensure all connections are secure and properly insulated.
10. Leak Check: Perform a thorough leak check on all connections using an appropriate leak detector.
11. Test Operation: Restore power to the refrigerator and test the compressor's operation. Monitor pressures, temperatures, and current draw to ensure proper functioning.

5. Operation

Once installed and the refrigeration system is properly charged, the inverter compressor will operate automatically to maintain the desired temperature within the refrigerator. Inverter technology allows the compressor to vary its speed, providing more efficient and quieter operation compared to traditional compressors.

• Automatic Control: The compressor's speed is controlled by the refrigerator's electronic control unit based on temperature demands.
• Energy Efficiency: The variable speed operation helps reduce energy consumption by running only at the necessary capacity.
• Quiet Operation: Inverter compressors typically operate at lower noise levels due to their ability to run at varying speeds rather than cycling on and off at full power.

6. Maintenance

Inverter compressors are generally low-maintenance components. However, regular maintenance of the overall refrigeration system is crucial for optimal performance and longevity.

• Keep Condenser Coils Clean: Dust and debris on the condenser coils can hinder heat dissipation, forcing the compressor to work harder. Clean the coils regularly (every 6-12 months) using a brush or vacuum cleaner.
• Check Door Seals: Ensure refrigerator door seals are intact and sealing properly to prevent cold air loss, which can overwork the compressor.
• Monitor Performance: Pay attention to any unusual noises, excessive running, or inadequate cooling, which could indicate a problem with the compressor or other system components.
• Professional Inspection: Consider a professional inspection of your refrigeration system every few years to ensure all components are functioning correctly.

7. Troubleshooting

If you experience issues with your refrigerator's cooling, consider the following common troubleshooting steps. For complex issues, always consult a qualified technician.

• Refrigerator Not Cooling:
  • Check if the power cord is securely plugged in.
  • Verify the thermostat setting is appropriate.
  • Ensure condenser coils are clean and not obstructed.
  • Check if the evaporator fan is running.
  • If the compressor is not running or making unusual noises, it may indicate a fault.
• Compressor Running Constantly:
  • Poor door seal allowing warm air in.
  • Overloaded refrigerator.
  • Dirty condenser coils.
  • Faulty thermostat or temperature sensor.
  • Refrigerant leak (requires professional service).
• Unusual Noises:
  • Vibrations: Ensure the refrigerator is level and not touching walls or cabinets.
  • Rattling/Clanking: Could indicate loose parts or a failing compressor.
  • Hissing/Gurgling: Normal sounds of refrigerant flow, but excessive noise might indicate an issue.

Always disconnect power before inspecting any internal components.

8. User Tips

• For optimal performance, ensure adequate air circulation around the refrigerator, especially at the back and sides where heat is dissipated.
• Avoid placing hot food directly into the refrigerator, as this increases the workload on the compressor.
• Defrost your freezer regularly if it's not a frost-free model, as excessive ice buildup can reduce efficiency.

9. Support and Contact Information

For technical assistance, warranty inquiries, or bulk orders, please contact us directly:

• Email: c18216361750@126.com
• WhatsApp: +8618821868845

Please have your compressor model number ready when contacting support to ensure efficient service.