LG Commercial Washer Service Manual

The LG Commercial Washer is a heavy-duty laundry appliance designed for commercial use, featuring advanced washing technologies, multiple cycle options, energy-efficient operation, durable construction, and comprehensive service diagnostics. Below are key sections for safety, technical specifications, installation, operation, maintenance, troubleshooting, and service procedures.

1. Product Overview 2. Technical Specifications 3. Installation Requirements 4. Control Panel Operation 5. Washing Programs 6. Maintenance Procedures 7. Error Codes & Diagnostics 8. Disassembly Instructions 9. Parts Replacement 10. Safety Precautions 11. Troubleshooting Guide

Product Overview

Key components: Stainless steel drum, electronic control board, motor assembly, water inlet valves, drain pump, suspension system, and digital display.

Component	Description
Control Panel	Digital display with touch controls and program selection
Drum Capacity	Commercial-grade stainless steel, various load capacities
Motor Type	Direct Drive motor with inverter technology
Water Inlet	Hot and cold water connections with pressure requirements
Drain System	High-capacity drain pump with filter
Suspension	Shock absorption system for stability
Power Requirements	208-240V AC, 60Hz commercial electrical connection
Dimensions	Varies by model - consult specific model specifications
Weight Capacity	Heavy-duty construction for commercial loads
Certifications	UL Commercial, Energy Star compliant

Technical Specifications

Model Series: LG Commercial Washer series
Capacity: 20-50 lb capacity depending on model
Motor: Direct Drive Inverter Motor
Water Pressure: 20-116 psi required
Voltage: 208-240V AC, 60Hz
Amperage: Varies by model (consult specifications)
Spin Speed: Adjustable up to 1400 RPM
Programs: Multiple commercial washing cycles
Dimensions: Varies by model - refer to model documentation
Weight: 150-300 lbs depending on capacity

Installation Requirements

Proper installation is critical for optimal performance and safety.

Location: Level, solid floor with adequate ventilation and clearance
Water Connections: Hot and cold water lines with shut-off valves
Drain Requirements: 2-inch minimum drain line, proper trap installation
Electrical: Dedicated 208-240V circuit with proper grounding
Leveling: Adjust leveling feet for stability
Transportation: Use proper lifting equipment - unit is heavy

WARNING! Washer is extremely heavy; use proper lifting equipment and multiple personnel for installation. Ensure all connections are secure and leak-free.

Control Panel Operation

Digital control panel with programmable settings and diagnostic capabilities.

Main Controls: POWER, START/PAUSE, PROGRAM SELECTION, TEMPERATURE, SPIN SPEED, OPTIONS.

Display Functions: Cycle time remaining, selected program, temperature setting, spin speed, error codes. Programming: Custom cycles, delay start, child lock, buzzer volume. Service Mode: Access diagnostic functions and error history.

Washing Programs

Multiple commercial washing programs designed for various fabric types and soil levels.

Heavy Duty: For heavily soiled commercial linens
Normal: Standard commercial laundry
Quick Wash: Reduced time for lightly soiled items
Delicates: Gentle cycle for sensitive fabrics
Sanitize: High-temperature sanitization cycle
Bulky Items: For large commercial items
Rinse & Spin: Additional rinse cycles available
Custom: Programmable custom cycles

Note: Cycle times and temperatures vary by program selection.

Maintenance Procedures

Regular maintenance ensures optimal performance and extends machine lifespan.

Daily: Wipe control panel and exterior surfaces
Weekly: Clean door seal and glass
Monthly: Clean drain pump filter
Quarterly: Run cleaning cycle with washer cleaner
Annually: Professional inspection and maintenance
As Needed: Check and clean water inlet filters

CAUTION! Always disconnect power before performing any maintenance. Use only LG-approved cleaning products.

Error Codes & Diagnostics

Comprehensive diagnostic system with error code display for service troubleshooting.

Error Code	Description	Possible Cause
IE	Water inlet error	Water supply issues, inlet valve failure
OE	Drain error	Drain pump, clogged drain line
FE	Water level sensor error	Sensor failure, control board issue
DE	Door lock error	Door switch, lock mechanism
PE	Pressure sensor error	Sensor malfunction, air tube issues
LE	Motor error	Motor, drive board, sensor failure
TE	Temperature sensor error	Heater, sensor, control board
UE	Unbalanced load	Load distribution, suspension

Disassembly Instructions

Step-by-step disassembly procedures for service and repair.

Safety First: Disconnect power and water supply
Top Panel: Remove screws and lift off top cover
Control Panel: Disconnect wiring and remove panel
Front Panel: Remove screws and detach front assembly
Door Assembly: Remove hinge screws and door
Drum Access: Remove springs and dampers for drum access
Motor Assembly: Disconnect wiring and mounting bolts
Pump Assembly: Remove drain hose and pump mounting

WARNING! Document wire connections and component positions during disassembly.

Parts Replacement

Authorized replacement parts and installation procedures.

Motor Assembly: Direct Drive motor replacement procedure
Control Board: Main PCB replacement and programming
Drain Pump: Pump replacement and priming
Water Valves: Inlet valve replacement
Door Lock: Lock mechanism replacement
Suspension: Spring and damper replacement
Seals: Door seal and gasket replacement
Sensors: Pressure sensor and temperature sensor replacement

Note: Use only LG genuine replacement parts for optimal performance.

Safety Precautions

Critical safety information for service technicians and operators.

Electrical Safety: Always disconnect power before service
Water Safety: Shut off water supply before repairs
Mechanical Safety: Machine contains moving parts - ensure complete stop
Chemical Safety: Proper handling of cleaning chemicals
Lifting Safety: Use proper equipment for heavy components
Training: Only qualified technicians should perform repairs

DANGER! High voltage present - fatal shock hazard. Always verify power disconnection.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
No power	Power supply, circuit breaker	Check power source, reset breaker, verify outlet
No water filling	Water supply, inlet valves	Check water pressure, inspect valves, clean filters
Not draining	Drain pump, clogged drain	Clean pump filter, check drain line, test pump
Excessive vibration	Unbalanced load, suspension	Redistribute load, inspect springs and dampers
Door won't lock	Door switch, lock mechanism	Test door switch, inspect lock assembly
Error codes displayed	Various system faults	Refer to error code table, run diagnostics
Poor cleaning	Water temperature, detergent	Check water heater, verify detergent usage
Loud noises	Motor, bearings, foreign objects	Inspect motor, check for objects in drum

Reset Procedure: Unplug for 5 minutes to reset control board.

Service Support: LG Commercial Technical Support: 1-800-243-0000