Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F9 Solution: MULTIPLE SOLUTIONS Cause: DECREASED FREQUENCY DUE TO HIGH AIR DISCHARGE Remarks: DESCRIPTION:ALL SYSTEMS OPERATE NORMALLY, WHILE THE OPERATION FREQUENCY FOR THE COMPRESSOR IS DECREASED.REPAIR:1) THE EVAPORATOR AND CONDENSER ARE DIRTY:SOLUTIONS 1) CHECK IF THE EVAPORATOR AND CONDENSER ARE DIRTY OR...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F8 Solution: MULTIPLE SOLUTIONS Cause: DECREASED FREQUENCY DUE TO OVERCURRENT Remarks: DESCRIPTION:ALL SYSTEMS OPERATE NORMALLY, WHILE THE OPERATION FREQUENCY FOR THE COMPRESSOR IS DECREASED.REPAIR:1) THE INPUT SUPPLY VOLTAGE IS NOT STABLE:SOLUTION 1) CHECK IF THE SUPPLY VOLTAGE IS TOO LOW. IF YES,...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F6 Solution: MULTIPLE SOLUTIONS Cause: LIMITED/DECREASED FREQUENCY DUE TO OVERLOAD Remarks: DESCRIPTION:ALL SYSTEMS OPERATE NORMALLY, WHILE THE OPERATION FREQUENCY FOR THE COMPRESSOR IS DECREASED.REPAIR:1) THE EVAPORATOR AND CONDENSER ARE DIRTY:SOLUTION 1) CHECK IF THE EVAPORATOR AND CONDENSER ARE DIRTY OR NOT. IF...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F5 Solution: MULTIPLE SOLUTIONS Cause: OUTDOOR DISCHARGE TEMPERATURE SENSOR IS OPEN/SHORT CIRCUITED Remarks: DESCRIPTION:COMPLETE UNIT STOPS OPERATION.REPAIR:1) POOR CONTACT/CONNECTION OF INDOOR TEMPERATURE SENSOR (LOOSE):SOLUTION 1) CHECK IF THE SENSOR WIRE PLUG IS LOOSE FROM THE PCB OR NOT. IF YES, INSERT THE...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F4 Solution: MULTIPLE SOLUTIONS Cause: OUTDOOR CONDENSER TEMPERATURE SENSOR IS OPEN/SHORT CIRCUITED Remarks: DESCRIPTION:*AC UNIT IN COOLING/DRY MODE: THE COMPRESSOR AND OUTDOOR FAN STOP OPERATING WHILE THE INDOOR FAN WILL CONTINUE TO OPERATE. *AC UNIT IN HEATING MODE: AFTER OPERATING FOR 3...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F3 Solution: MULTIPLE SOLUTIONS Cause: OUTDOOR AMBIENT TEMPERATURE SENSOR IS OPEN/SHORT CIRCUITED Remarks: DESCRIPTION:*AC UNIT IN COOLING/DRY MODE: THE COMPRESSOR AND OUTDOOR FAN STOP OPERATING WHILE THE INDOOR FAN WILL CONTINUE TO OPERATE. *AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1)...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F2 Solution: MULTIPLE SOLUTIONS Cause: INDOOR EVAPORATOR TEMPERATURE SENSOR IS OPEN/SHORT CIRCUITED Remarks: DESCRIPTION:*AC UNIT IN COOLING/DRY MODE: THE INDOOR FAN WILL CONTINUE TO OPERATE WHILE THE COMPRESSOR AND OUTDOOR FAN STOP OPERATION.*AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1) POOR...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F1 Solution: MULTIPLE SOLUTIONS Cause: INDOOR AMBIENT TEMPERATURE SENSOR IS OPEN/SHORT CIRCUITED Remarks: DESCRIPTION:*AC UNIT IN COOLING/DRY MODE: THE INDOOR FAN WILL CONTINUE TO OPERATE, WHILE THE COMPRESSOR AND OUTDOOR FAN STOP OPERATION.*AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1) POOR...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE C5 Solution: MULTIPLE SOLUTIONS Cause: MALFUNCTION OF JUMPER CAP Remarks: DESCRIPTION:THE COMPLETE UNIT STOPS OPERATION.REPAIR:1) JUMPER CAP IS NOT INSTALLED ON THE MAINBOARD:SOLUTION 1) CHECK IF THERE IS NO JUMPER ON THE PCB. IF NOT, PLEASE ADD A JUMPER2) THE JUMPER CAP...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE U8 Solution: MULTIPLE SOLUTIONS Cause: MALFUNCTION OF ZERO CROSSING SIGNAL OF INDOOR UNIT Remarks: DESCRIPTION:THE COMPRESSOR, THE OUTDOOR FAN AND INDOOR FAN STOP OPERATION.REPAIR:1) CHECK IF THE POWER IS ABNORMAL2) CHECK IF MAIN BOARD (CONTROL BOARD) OF INDOOR UNIT IS DAMAGED:SOLUTION 2)...