Model reference
LG GR-J303T
Refrigerator
1 document9 error codes5 service modes
Available documentation
Service Manual
- Kimchi Refrigerator Service Manual46 pg
MyPros+ Max
Diagnose your LG GR-J303T.
- Step-by-step diagnostics from the service manual
- Test values, resistance specs, and wiring references
- Verified part numbers when replacement is needed
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Error codes (9)
CodeMeaning
COPoor communicationd1Upper compartment defrosting sensor is disconnected or shorted.d2Middle compartment defrosting sensor is disconnected or shorted.dPSingle motor damper failureFSUpper compartment (K1) sensor is disconnected or shorted.H1Poor defrosting at upper compartmentH2Poor defrosting at middle compartmentLSLower compartment (K3) sensor is disconnected or shorted.USMiddle compartment (K2) sensor is disconnected or shorted.Service modes (5)
- FRONT-C Heater Touching Inspection ModePress both upper 'Store' button and lower 'Ferment' button simultaneously for 5 seconds or more.
- LCD Graphic and Backlight CheckPress the upper compartment 'Storage' button and the lower compartment 'Storage' button…
- LED CheckPress both upper 'Store' button and middle 'Store' button simultaneously for 1 second or more.
- TEST1 - Cooling TestPress the test switch on the main PCB once.
- TEST2 - Defrost Heater TestPress the test switch on the main PCB once while in TEST1 mode.
Full entry steps, exit procedures, and test sequences are available in Max.
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