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LG RC8055*P*Z - User Manual

LG RC8055*P*Z
55 pages
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HEAT PUMP DRYER
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : RC9055*P*Z (RH9051WH)
RC8055*P*Z (RH8051WH)
RC7055*P*Z (RH7050WH)
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LG RC8055*P*Z Specifications

General IconGeneral
BrandLG
ModelRC8055*P*Z
CategoryDryer
LanguageEnglish

Summary

IMPORTANT SAFETY NOTICE

General Safety, Grounding, and ESD Precautions

Essential safety guidelines, grounding procedures, and electrostatic discharge prevention.

SPECIFICATIONS

INSTALLATION INSTRUCTIONS

Critical Installation Safety Warnings

Critical safety warnings regarding installation procedures and appliance placement.

Earthing, Grounding, and Water Drain Setup

Essential electrical safety instructions and condensed water drain connection methods.

COMPONENT TESTING TIPS

Thermostat, Thermistor, Motor, and Capacitor Testing

Procedures and expected values for testing key electrical components like thermostats, thermistors, motors, and capacitors.

WIRING DIAGRAM

TROUBLESHOOTING

Error Mode Diagnostics and Checkpoints

Details specific error codes (E1 to E4, CE1, DE) and their troubleshooting checkpoints.

Comprehensive Troubleshooting Flowchart

A visual guide to systematically diagnose and resolve dryer operational problems.

DIAGNOSTIC TEST

Test 1: Electric Supply & Control Check

Procedure to check power supply, controller operation, and related harness connections.

Test 3: Motor Malfunction Diagnosis

Steps to diagnose motor malfunctions, abnormal noise, and "Clean filter" errors.

Test 4: Heater System Diagnosis

Procedure for diagnosing heater failures, drying temperature issues, and frequent on/off cycles.

Test 5: Pump and Water Sensor System Check

Diagnosing "OE" error signals, pump operation, and water sensor issues.

Test 6: Thermistor Performance Check

Identifying problems with thermistors causing poor drying or abnormal operation.

Test 7: Moisture Sensor Functionality

Troubleshooting drying failures by checking the moisture sensor and its connections.

Test 8: Addressing Drying Performance Issues

Diagnosing common drying problems like no drying or improper installation environment.

Test 9: Long Drying Time Troubleshooting

Identifying causes for extended drying times, including installation and component checks.

Test 10: Abnormal Noise Diagnosis

Troubleshooting various types of abnormal noises originating from the dryer's components.

SERVICE BULLETIN: Error Handling

SERVICE BULLETIN: Parts and Actions

SERVICE BULLETIN: Pump Cover Replacement

SERVICE BULLETIN: Control Valve Cleaning

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