508067-01Issue 2016Page 58 of 75
Indoor / Outdoor Unit Error Codes
All indoor units provide error code information with either a digital LED display or with Flash codes.
Front Panel
Display window
Figure 25. Indoor Unit Display
Outdoor Unit
LED
Outdoor
Unit LED
Sequence
Indoor Unit
Display
Error Information
Page
Location
1 time OFF E0 Indoor unit EEPROM parameter error. 61
2 times OFF E1 Indoor / outdoor units communication error. 62
3 times OFF E2 Zero-crossing signal detection error. 64
4 times OFF E3 The indoor fan speed is operating outside of the normal range. 65
5 times OFF E4
Indoor room temperature sensor T1 is in open circuit or has short
circuited
67
6 times OFF E5
Evaporator coil temperature sensor T2 is in open circuit or has
short circuited.
67
7 times OFF EC Refrigerant leak detected. 68
1 times ON F0 Overload current protection. 67
2 times ON F1
Outdoor ambient temperature sensor T4 open circuit or short
circuit.
67
3 times ON F2
Condenser coil temperature sensor T3 is in open circuit or has
short circuited.
67
4 times ON F3
Compressor discharge temperature sensor TP open circuit or short
circuit.
67
5 times ON F4 Outdoor unit EEPROM parameter error. 61
6 times ON F5 The outdoor fan speed is operating outside of the normal range. 65
1 times FLASH p0 IPM malfunction or IGBT over-strong current protection. 69
2 times FLASH p1 Over voltage or over low voltage protection. 70
3 times FLASH p2 High temperature protection of IPM module. 71
5 times FLASH p4 Inverter compressor drive error. 72
Table 14. Indoor and Outdoor Unit Error Codes
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