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 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 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 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 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 JF Solution: MULTIPLE SOLUTIONS Cause: COMMUNICATION MALFUNCTION BETWEEN INDOOR UNIT AND INSPECTION BOARD Remarks: DESCRIPTION:UNIT IN NORMAL OPERATION.REPAIR:1) CHECK CONNECTION BETWEEN INDOOR UNIT AND INSPECTION BOARD:SOLUTION 1) CHECK IF THERE IS A BAD CONNECTION BETWEEN INDOOR UNIT AND INSPECTION BOARD. IF YES,...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE L1 Solution: REPLACE THE INSPECTION BOARD Cause: MALFUNCTION OF HUMIDITY SENSOR Remarks: DESCRIPTION:THE COMPRESSOR, OUTDOOR UNIT AND INDOOR UNIT STOP OPERATING.REPAIR:1) CHECK THE INSPECTION BOARD:SOLUTION 1) CHECK IF THE INSPECTION BOARD IS DAMAGED. IF YES, PLEASE REPLACE THE INSPECTION BOARD...
Symptom: MGTC-20, DXTC-20, DXTH-20 - ERROR CODE FF Solution: NORMAL PROTECTION Cause: LIMITING/REDUCING FREQUENCY FOR IPM MODULE TEMPERATURE PROTECTION Remarks: DESCRIPTION:WHENEVER THE IPM HAS A HIGH TEMPERATURE.WHEN THE IPM TEMPERATURE REACHES TO THE POINT WHERE FREQUENCY LIMITATION/REDUCTION IS NEEDED, IT WILL ACTIVATE THE FF PROTECTION.REPAIR:1) THIS IS A NORMAL...
Symptom: MGTC-20, DXTC-20, DXTH-20 - ERROR CODE FH Solution: NORMAL PROTECTION Cause: LIMITING/REDUCING FREQUENCY FOR COMPRESSOR DRIVING PROTECTION Remarks: DESCRIPTION:WHENEVER THE BUS VOLTAGE IS TOO LOW.WHEN THE BUS VOLTAGE REACHES TO THE POINT WHERE FREQUENCY LIMITATION/REDUCTION IS NEEDED, IT WILL ACTIVATE THE FH PROTECTION.REPAIR:1) THIS IS A NORMAL PROTECTION...
Symptom: MGTC-20, DXTC-20, DXTH-20 - ERROR CODE P8 Solution: MULTIPLE SOLUTIONS Cause: OUTDOOR OVERTEMPERATURE/UNDERTEMPERATURE PROTECTION Remarks: DESCRIPTION:WHEN THE ENVIRONMENT TEMPERATURE IS A CERTAIN CONDITION (DESCRIBED IN 1. AND 2. BELOW), THE COMPRESSOR WILL STOP WORKING. AND AFTER 200 SECONDS OF DELAY, THE INDOOR UNIT WILL DISPLAY THE P8 PROTECTION...