LG GR-382R Service Manual

32
7-4. TROUBLE SHOOTING
* Replace the PWB when there´s no trouble after checking the contents of trouble.
REMEDY
Certify Fuse. Certify outlet voltage. Use boosting Transformer. Reconnect CONNECTOR. Replace Transformer Replace Compressor. Replace OLP, PTC. Replace MAIN PWB (RY1). Verify the black wire of MAIN PWB CONNECTOR (CON1). Repair the leak and recharge the refrigerant. Replace FAN MOTOR. Replace DOOR LINER. Verify MOTOR and the connection of the black wire of MAIN PWB CONNECTOR (CON1). See DEFROSTING trouble Replace SENSOR.
CONTENT
POWER SOURCE is incorrect. Is the voltage correct? connector connection is poor. Transformer Fuse open. COMPRESSOR lock or blocked. OLP or PTC is defective. COMPRESSOR RELAY is defective. CONNECTING WIRE is defective. Refrigerant leakage. FAN MOTOR is defective. DOOR LINER contact. CONNECTING WIRE is defective. Poor DEFROSTING. SENSOR RESISTANCE is incorrect.
CHECKING
METHOD
FREEZER/REFRIGE RATOR door open. Verify the correct bulb is used. Check the connector. Check the main PWB. Measure the amount of frost on Evaporator and the surface temperature of condenser pipe. Check the main PWB. Certify the amount of frost on evaporator. Check the SENSOR resistance in the refrigerator.
POINTS TO
CHECK
1. FREEZER/REFRI
GERATOR.
2. LAMP is dim. 3. The connection of
MAIN PWB CONNECTOR.
1. Does compressor
operate?
2. Does refrigerant leak. 1. Does FAN
MOTOR operate?
2. Is DEFROSTING
normal?
3. Is SENSOR normal?
STATE OF
TROUBLE
·
Al the DISPLAY LED OFF.
·
DISPLAY LED represents abnormal operation.
1. NO COOLING 1. FREEZER TEMPERATURE is too warm.
CLASSIFICATION
POWER SOURCE
COOLING

LG GR-382R Specifications

General

Brand	LG
Model	GR-382R
Category	Refrigerator
Language	English