52
4. TROUBLESHOOTING
4-1) FUNCTION FOR FAILURE DIAGNOSIS ···························53
4-1-1. TEST MODE (MANUAL OPERATION / MANUAL DEFROST FUNCTION) ···········53
4-1-2. DISPLAY FUNCTION OF COMMUNICATION ERROR ···················54
4-1-3. SELF-DIAGNOSTIC FUNCTION ····························55
4-1-4. DISPLAY FUNCTION OF LOAD CONDITION ·······················58
4-1-5. EXHIBITION MODE SETTING FUNCTION ························59
4-1-6. OPTION SETTING FUNCTION·····························60
4-1-7. OPTION TABLE ···································62
4-2) DIAGNOSTIC METHOD ACCORDING TO THE TROUBLE SYMPTOM(FLOW CHART) ·······63
4-2-1. IF THE TROUBLE IS DETECTED BY SELF-DIAGNOSIS ··················64
4-2-2. IF FAN DOES NOT OPERATE ·····························72
4-2-3. IF ICE ROOM FAN DOES NOT OPERATE ························75
4-2-4. IF ICE MAKER DOES NOT OPERATE ··························76
4-2-5. IF DEFROST DOES NOT OPERATE (F,R DEF HEATER) ··················77
4-2-6. IF POWER IS NOT SUPPLIED ·····························78
4-2-7. IF COMPRESSOR DOES NOT OPERATE ························79
4-2-8. WHEN ALARM SOUND CONTINUOUS WITHOUT STOP(RELATED WITH BUZZER SOUND) ··80
4-2-9. IF PANEL PCB DOES NOT WORK NORMALLY ······················82
4-2-10. IF PANTRY PANEL PCB IS NOT WORKING NORMALLY ·················83
4-2-11. WHEN REFRIGERATOR ROOM LAMP DOES NOT LIGHT UP ···············84
4-2-12. IF ICE WATER IS NOT SUPPLIED ···························86
4-2-13. IF WATER IS NOT SUPPLIED ·····························87
4-2-14. IF CUBED OR CRUSHED ICE IS NOT SUPPLIED ····················88
4-2-15. IF COVER ICE ROUTE MOOR(GEARD MOTOR) IS NOT WORKING NORMALLY ·······89
4-2-16. IF PHOTOSYNTHETIC LED LAMP DOES NOT WORK PROPERLY ·············90
4-2-17. IF INVERTER PCB POWER IS NOT SUPPLIED ·····················91
4-2-18. IF COMPRESSOR DOES NOT OPERATE ·······················92
4-2-18. LED BLINKING FREQUENCY DEPENDING ON PROTECTING FUNCTIONS ········93
SPM INTERNAL DIODE VOLTAGE ·······························94
INVERTER CONTROLLER BOARD CONNECTOR LOCATION ···················95
INVERTER PCB CIRCUIT DIAGRAM ······························96
4-3-1. INRUSH CURRENT PROTECTING CIRCUIT ·······················97
4-3-2. POWER SOURCE(HYBRID IC)·····························98
4-3-3. LOCATION SENSING RESISTANCE AREA ·······················99
4-3-4. SENSING CURRENT AREA ·····························100
4-3-5. COMP OPERATING SIGNAL AREA ··························101
4-3-6. BOOTSTRAP CHARGING AREA ···························102
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