Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE HE Solution: MULTIPLE SOLUTIONS Cause: DEMAGNETIZATION PROTECTION OF COMPRESSOR Remarks: DESCRIPTION:*AC UNIT IN COOLING MODE: THE COMPRESSOR AND OUTDOOR FAN STOP OPERATING *AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1) CHECK THE MAIN BOARD OF OUTDOOR UNIT:SOLUTION 1) CHECK IF THE...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE FC Solution: MULTIPLE SOLUTIONS Cause: MALFUNCTION OF MICRO SWITCH Remarks: DESCRIPTION:*AC UNIT IN COOLING/DRY MODE: THE COMPRESSOR STOPS OPERATING WHILE THE INDOOR FAN CONTINUES TO OPERATE. *AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1) CHECK THE SLIDING DOOR:SOLUTION 1) CHECK IF...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE E7 Solution: RESTART UNIT Cause: MODE SHOCK/ SYSTEM MODE SHOCK Remarks: DESCRIPTION:COMPLETE SYSTEM STOPS OPERATION.REPAIR:1) MALFUNCTION OF ONE OR MORE SYSTEMS:SOLUTION 1) THERE MAY BE 2 INDOOR UNITS THAT SET THE SHOCK MODE (SUCH AS ONE IS IN COOLING MODE AND THE...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE B5 Solution: MULTIPLE SOLUTIONS Cause: LIQUID VALVE TEMPERATURE SENSOR IS ON / SHORT-CIRCUITED Remarks: REPAIR:1) CHECK THE TEMPERATURE SENSOR:SOLUTION 1) CHECK IF THE TEMPERATURE SENSOR IS NOT WELL CONNECTED OR DAMAGED. IF YES, PLEASE FIX CONNECTION OR REPLACE THE SENSOR IF DAMAGED2)...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE B7 Solution: MULTIPLE SOLUTIONS Cause: GAS VALVE TEMPERATURE SENSOR IS ON / SHORT-CIRCUITED Remarks: REPAIR:1) CHECK THE TEMPERATURE SENSOR:SOLUTION 1) CHECK IF THE TEMPERATURE SENSOR IS NOT WELL CONNECTED OR DAMAGED. IF YES, PLEASE FIX CONNECTION OR REPLACE THE SENSOR IF DAMAGED2)...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE C4 Solution: JUMPER CAP NEEDS TO BE INSTALLED Cause: MALFUNCTION OF JUMPER CAP OF OUTDOOR UNIT Remarks: DESCRIPTION:*AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.*AC UNIT IN OTHER MODES: OUTDOOR UNIT STOPS OPERATION.REPAIR:1) JUMPER CAP OF OUTDOOR UNIT HAS NOT BEEN...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE F0 Solution: MULTIPLE SOLUTIONS Cause: REFRIGERANT INSUFFICIENT PROTECTION/CUT-OFF PROTECTION OF REFRIGERANT Remarks: DESCRIPTION:*AC UNIT IN COOLING MODE: THE COMPRESSOR AND OUTDOOR FAN STOP WHILE THE INDOOR FAN CONTINUES TO OPERATE. *AC UNIT IN HEATING MODE: COMPLETE UNIT STOPS OPERATION.REPAIR:1) CHECK IF THE...
Symptom: DRIPPING WATER FROM THE INSIDE UNIT Solution: COIL CLEANER, DRAIN CLEAN, UNIT LEVEL, SHORT OF REFRIGERANT GAS Cause: DIRTY COIL, DRAIN LINE CLOTTED, UNIT NOT BEEN LEVEL Remarks: REPAIR:1) MAKE SURE THE COIL IS NOT DIRTY AND IS CREATING ICE THAT WOULD LEAD TO WATER LEAK. ...
Symptom: MGTC-20, DXTC-20, DXTH-20 - ERROR CODE FN Solution: NORMAL PROTECTION Cause: LIMITING/REDUCING FREQUENCY FOR OUTDOOR UNIT AC CURRENT PROTECTION Remarks: DESCRIPTION:WHENEVER THE OUTDOOR UNIT RUNNING CURRENT IS TOO HIGH.WHEN THE RUNNING CURRENT REACHES TO THE POINT WHERE FREQUENCY LIMITATION/REDUCTION IS NEEDED, IT WILL ACIVATE THE FN PROTECTION.REPAIR:1) THIS...
Symptom: MGTC-20, DXTC-20, DXTH-20 - ERROR CODE FJ Solution: NORMAL PROTECTION Cause: LIMITING/REDUCING FREQUENCY FOR DISCHARGE OVERTEMPERATURE PROTECTION Remarks: DESCRIPTION:WHENEVER THE COMPRESSOR DISCHARGE TEMPERATURE IS TOO HIGH.WHEN THE DISCHARGE TEMPERATURE REACHES TO THE POINT WHERE FREQUENCY LIMITATION/REDUCTION IS NEEDED, IT WILL ACTIVATE THE FJ PROTECTION.REPAIR:1) THIS IS A NORMAL...