Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE P1 Solution: MULTIPLE SOLUTIONS Cause: OVER VOLTAGE OR TOO LOW VOLTAGE PROTECTION Remarks: DESCRIPTION: ABNORMAL INCREASES OR DECREASES IN VOLTAGE ARE DETECTED BY CHECKING THE SPECIFIED VOLTAGE DETECTION CIRCUIT.REPAIR:1) CHECK THE POWER SUPPLY:IS IT FUNCTIONING PROPERLY? NO = TURN OFF THE UNITYES...
Symptom: MGC-19,DXH-19, DXF-19 P0 Solution: MULTIPLE SOLUTIONS Cause: IPM MALFUNCTION OR IGBT OVER-STRONG CURRENT PROTECTION Remarks: DESCRIPTION: WHEN THE VOLTAGE SIGNAL THAT THE IPM SENDS TO THE COMPRESSOR DRIVE CHIP IS ABNORMAL, THE DISPLAY LED SHOWS "P0" AND THE AC TURNS OFF.***REPAIR OPTION 1 (FOR 9K - 24K):*** 1)...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE F0 Solution: MULTIPLE SOLUTIONS Cause: OVERLOAD CURRENT PROTECTION Remarks: DESCRIPTION:AN ABNORMAL CURRENT INCREASE IS DETECTED BY CHECKING THE SPECIFIED CURRENT DETECTION CIRCUIT.REPAIR:1) CHECK THE POWER SUPPLY:IS IT FUNCTIONING PROPERLY?NO = STOP THE UNITYES = CHECK 2)2) CHECK SYSTEM FOR BLOCKAGES:DO ANY EXIST?YES...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE EC Solution: MULTIPLE SOLUTIONS Cause: REFRIGERANT LEAKAGE DETECTION Remarks: DESCRIPTION:DEFINE THE EVAPORATOR COIL TEMPERATURE. T2 OF THE COMPRESSOR JUST STARTS RUNNING AS TCOOL.IN THE FIRST 8 MINUTES AFTER THE COMPRESSOR STARTS UP, IF 'T2 < TCOOL-2 DEGREES CELCIUS' DOES NOT CONTINUE FOR...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE E4/E5/F1/F2/F3 Solution: MULTIPLE SOLUTIONS Cause: OPEN CIRCUIT OR SHORT CIRCUIT OF TEMPERATURE SENSOR Remarks: DESCRIPTION:IF THE SAMPLING VOLTAGE IS LOWER THAN 0.06V OR HIGHER THAN 4.94V, THE LED WILL DISPLAY THE FAILURE.REPAIR:1) CHECK THE CONNECTION BETWEEN TEMPERATURE SENSOR AND PCB:IS IT PROPERLY...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE E3/F5 Solution: MULTIPLE SOLUTIONS Cause: FAN SPEED IS OPERATING OUTSIDE OF THE NORMAL RANGE Remarks: DESCRIPTION: WHEN THE INDOOR FAN SPEED IS TOO LOW (300RPM) FOR A CERTAIN TIME, THE UNIT WILL STOP AND THE LED WILL DISPLAY THE FAILURE (E3). WHEN...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE E2 Solution: MULTIPLE SOLUTIONS Cause: ZERO CROSSING SIGNAL DETECTION ERROR Remarks: DESCRIPTION:WHEN PCB DOES NOT RECEIVE ZERO CROSSING SIGNAL FEEDBACK FOR 4 MINUTES OR THE ZERO CROSSING SIGNAL TIME INTERVAL IS ABNORMAL.REPAIR:1) CHECK THE CONNECTIONS AND POWER SUPPLY:IS IT NORMAL?NO = CORRECT...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE E1 Solution: MULTIPLE SOLUTIONS Cause: INDOOR/OUTDOOR UNIT COMMUNICATION ERROR Remarks: DESCRIPTION:THE INDOOR UNIT HAS NOT RECEIVED FEEDBACK FROM THE OUTDOOR UNIT FOR 110 SECONDS, FOR 4 CONSECUTIVE TIMES.REPAIR:1) TURN POWER OFF, THEN RESTART THE UNIT AFTER 2 MINUTES:DOES A PROBLEM REMAIN? NO...
Symptom: DXF-19, DXH-19, MGC-19 - ERROR CODE E0/F4 Solution: MULTIPLE SOLUTIONS Cause: EEPROM PARAMETER ERROR Remarks: DESCRIPTION: INDOOR OR OUTDOOR PCB MAIN CHIP DOES NOT RECEIVE FEEDBACK FROM EEPROM CHIP.REPAIR:1) SHUT OFF THE POWER SUPPLY AND TURN IT BACK ON 2 MINUTES LATER: IS IT STILL DISPLAYING THE ERROR...
Symptom: DXG-18, DXH-18, MGC-18 - ERROR CODE FO (SMALL O) Solution: ADD REFRIGERANT PER NAME PLATE OR INSTRUCTIONS FROM FACTORY Cause: REFRIGERANT RECOVERY MODE Remarks: REPAIR:1) LACK OF REFRIGERANT:SOLUTION 1) ADD REFRIGERANT PER NAME PLATE OR INSTRUCTIONS FROM FACTORY...