Table 6-2A: Fault Codes (inverter fault) & Messages
Message Description Action
DC
Injection
(F01)
Utility waveform is abnormal
Contact customer service for
technical support
Temperature
High
(F05)
The internal ambient is over
high temperature limit
Check the installation ambient and
environment
Temperature
Low
(F07)
The internal ambient is under
low temperature limit
Check the installation ambient and
environment
Amb Temp
Fault
(F06)
Ambient temperature detection
failure
Contact customer service for
technical support
Boost Temp
Fault
(F08)
Boost module temperature
detection failure
Contact customer service for
technical support
Inveter Temp
Fault
(F10)
Inverter module temperature
detection failure
Contact customer service for
technical support
AC Sensor
Fault
(F15,F18)
1. Insufficient input power
2. Auxiliary power circuit failure
Contact customer service for
technical support
AC RLY
Fault
(F13)
1. Defective relay driver circuit
2. Relay(s) failure
Contact customer service for
technical support
Contact customer service for
technical support
Contact customer service for
technical support
6.2 Fault Codes (Inverter Fault)
1. Insufficient input power
2. Auxiliary power circuit failure
1. Incorrect calibration
2. Defective current feedback
circuit
Idc Sensor
Fault
(F17,F19)
Eff. Abnormal
(F20)
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Error Message and Trouble Shooting