Airdach ACTH2418VG1-D, Technical Manual

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R410A 17.5 SEER Inverter Split System Technical Manual
9.3 Error code
The fault codes for outdoor unit as follows:
NO Error Code Status description
1 E4 T4 outdoor ambient temperature sensor fault
2 E5 T5 Discharge temperature sensor fault
3 E6 T3 Outdoor heat exchanger temperature sensor fault
4 E9 AC voltage overvoltage / undervoltage protection
5 E10 EEPROM fault
6 H0 Communication fault of master board and driver chip
7 H4 IPM Module high temperature abnormal protection
8 H5 Refrigerant low pressure abnormal protection
9 H6 Exhaust high temperature abnormal protection
10 P1 High pressure protection
11 P2 Low pressure protection
12 P3 Inverter overcurrent protection
13 P4 Exhaust overheating protection
14 P5 T3 or T3B condenser pipe overheating protection
15 P6 IPM module protection
16 P9 DC fan motor fault
17 P11 T2 high temperature protection (Heating mode)