LG GR-M652Y*A Service Manual page 33

7-1-8 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. However, the
recognition tone (beep~) sounds.
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-M652Y*A/M712Y*A
GR-M652Y*X/M712Y*X
GR-M652Y*Y/M712Y*Y
GR-B652Y*B/M712Y*B
GR-B652Y*S/B712Y*S
GR-B652Y*Y/B712Y*Y
GR-B652Y*Q/B712Y*Q
NO Error
Faulty refrigerator
1
(R) sensor
Faulty defrosting
2
sensor
Faulty Room when super cool
3
temperature sensor and refrigerator
(in the main PCB) key pressed
together display
will be all off
4 Defrosting failure
Error Code
Display
Cut or short-circuited wire of
r
refrigerator sensor
Cut or short-circuited wire of
d
defrosting sensor
Cut or short-circuited wire of
intake air temperature sensor
Cut or disconnected wire of
defrosting heater or temperature
H
fuse(indicated at least 4 hours
later after the error occurs)
Cause
Comp
15 min ON/
15 min OFF
Normal
Condition
Normal
Condition
Normal
Condition
- 33 -
State of Operation with Error
Defrosting
Cooling fan
heater
Low Normal
RPM Condition
Low
defrosting
RPM
Low Normal
RPM Condition
Low Normal
RPM Condition
No