LG Inverter V Service Manual

Technical Service & Repair Guide

Service Documentation

Installation Guide

Tools Needed:

  • Multimeter
  • Service toolkit
  • Refrigerant gauges
  • Vacuum pump
  • Leak detector

Step-by-Step Installation

  1. Site Preparation: Ensure proper clearance and ventilation for optimal performance and service access.
  2. Electrical Connection: Verify voltage requirements and connect to appropriate power supply with proper grounding.
  3. Refrigerant Lines: Install and connect refrigerant lines following manufacturer specifications.
  4. Drainage System: Set up proper drainage with correct slope and routing.
  5. Control Wiring: Connect control wiring according to wiring diagram specifications.
  6. System Check: Perform pre-startup checks including electrical safety and component verification.
  7. Commissioning: Start system and verify proper operation across all modes and functions.
Warning: All installations must be performed by certified technicians to ensure safety and maintain warranty coverage.

Specifications

Model Series Inverter V Series
Type Variable Speed Inverter System
Compressor Type Digital Scroll Inverter
Cooling Capacity 24,000 - 60,000 BTU/h
Heating Capacity 26,000 - 62,000 BTU/h
Power Requirements 208-230V, 60Hz, 1-3 Phase
Refrigerant Type R410A
Operating Range -13°F to 115°F
Sound Level 19-45 dB
Dimensions Varies by model
Weight 150-300 lbs
Efficiency Rating SEER 20+

Warranty Information

  • Compressor Warranty: 10 years parts
  • Parts Warranty: 5 years
  • Labor Warranty: 1 year
  • Additional Coverage: Optional extended service plans available

For warranty service, contact LG Customer Service at 1-800-243-0000 or visit LG.com

Key Features

Dual Inverter Compressor

Advanced dual rotary inverter compressor provides precise temperature control, reduced noise, and increased energy efficiency with enhanced durability.

Smart Diagnosis

Built-in smart diagnosis system helps technicians quickly identify and troubleshoot issues using mobile app connectivity and error code analysis.

Variable Speed Operation

Intelligent variable speed technology adjusts compressor and fan speeds to maintain consistent temperatures while minimizing energy consumption.

Gold Fin™ Anti-Corrosion

Golden anti-corrosion treatment on heat exchanger fins provides superior protection against harsh environmental conditions and extends system life.

Wi-Fi Connectivity

SmartThinQ enabled for remote monitoring, control, and diagnostics through smartphone applications and web interfaces.

Quiet Operation

Advanced noise reduction technology including sound-absorbing materials and vibration isolation for ultra-quiet performance.

Service Features Explained

Self-Diagnosis

Automated system checks and error reporting for quick fault identification

Service Mode

Dedicated service mode for testing components and system functions

Data Logging

Comprehensive operation data recording for performance analysis

Remote Access

Remote system monitoring and control capabilities for service technicians

Component Testing

Individual component test functions for precise diagnostics

Software Updates

Field-upgradable firmware for system improvements and bug fixes

Troubleshooting

Problem Possible Cause Solution
System not starting Power supply issue, control board failure Check power supply, verify control board operation
Poor cooling/heating Refrigerant leak, dirty filters, compressor issue Check refrigerant levels, clean filters, inspect compressor
Unusual noises Fan motor issues, loose components, compressor problems Inspect fan assembly, tighten components, check compressor
Water leakage Clogged drain line, improper installation Clear drain line, verify proper installation slope
Error codes displayed Sensor failure, communication errors, component faults Refer to error code manual, check sensors and wiring
High power consumption Dirty coils, refrigerant issues, mechanical problems Clean heat exchangers, check refrigerant charge, inspect mechanical components

Common Error Codes

  • CH 00: Communication error - Check wiring and connections
  • CH 01: Indoor unit error - Inspect indoor PCB and sensors
  • CH 02: Outdoor unit error - Check outdoor PCB and components
  • CH 03: Compressor error - Verify compressor operation and wiring
  • CH 04: Fan motor error - Inspect fan motors and drivers
  • CH 05: Sensor error - Check temperature and pressure sensors

Manual Downloads

Current Model Manuals

LVN240HSV4

24k BTU Inverter V System

LVN360HSV4

36k BTU Inverter V System

LVN480HSV4

48k BTU Inverter V System

LVN600HSV4

60k BTU Inverter V System

Previous Models

LVN180HSV3

18k BTU Inverter System

LVN240HSV3

24k BTU Inverter System

LVN300HSV3

30k BTU Inverter System

LVN480HSV3

48k BTU Inverter System

Note: For models not listed here, please visit the LG Support Website for complete documentation.