LG GR-M652Y*A Service Manual page 34

7-1-9 ERROR DIAGNOSTIC MODE
1. The error diagnostic mode allows the SVC when a fault that may affect the performance of the product occurs while
operating the product.
2. Even if the function control button is pushed when an error occurs, the function will not be performed.
3. When the error is cleared while the error code is displayed due to a fault, the appliance returns to the normal condition
(Reset).
4. The error code is displayed by the refrigerator temp indication LED on the display of the refrigerator while the remaining
LEDs are off.
GR-B652Y*C/B712Y*C
NO Error
Faulty refrigerator
sensor (on the control
1
box of the refrigerator)
Faulty defrosting
2
sensor
Faulty room temp.
3 sensor in the main
PCB
Defrosting failure
4
Error Code Display
R0 R1 R2 R3 R4
Cut or short-circuited wire of
refrigerator sensor
Cut or short-circuited wire of
defrosting sensor
Cut or short-circuited wire of
defrosting sensor
Cut or disconnected wire of
defrosting heater or temperature
fuse(indicated at least after 2 hrs
of error occurrence)
Cause
- 34 -
: OFF : ON
State of Operation with Error
Comp /
Defrosting
Cooling fan
heater
15 min ON/ Normal
15 min OFF Condition
Normal
No defrosting
Condition
Normal Normal
Condition Condition
Normal
Normal
Condition
Condition