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TROUBLESHOOTING AND SELF DIAGNOSIS
37
ERROR SIGNALS ON THE DISPLAY
In case of error, the display on the indoor unit shown the following error codes:
Error Code
Failure type
E0
Indoor and outdoor communication failure
EC
Outdoor communication failure
E1
Indoor room temperature sensor
E2
Indoor coil temperature sensor
E3
Outdoor coil temperature sensor
E4
Refrigerant leakage or fault
E6
Indoor fan motor fault
E7
Outdoor temperature sensor
E8
Exhaust temp. sensor
E9
IPM drive and module fault
EF
Outdoor fan motor fault (DC motor)
EA
Current sensor fault
EE
EEPROM fault
EH
Outdoor suction temperature sensor fault
Protection Display Code List
P1
Overvoltage /lower voltage protection
P2
Overcurrent protection
P4
Exhaust over temperature protection
P5
Too cool protection in cooling mode
P6
Overheat protection in cooling mode
P7
Overheat protection in heating mode
P8
Outdoor over temperature
/ lower temperature protection
P9
Drive protection (software control )
P0
Module protection (hardware control)
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