Fault
Message
Code
Cause
Action
DC Injection DC component in grid current
over the limit
Check the power supply line for direct
current.
Contact the utility operator to improve the
grid quality.
F01
Temp High
(Temperature
High)
Internal temperature too high
to cause power output < 5%
Check the temperature of installation
environment.
Contact your inverter supplier.
F05
HW NTC1 Fail
(Amb Temp Fault)
Internal fault
Contact your inverter supplier.
F06
Temp Low
(Temperature
Low)
Internal temperature < -25
℃
Check the temperature of installation
environment.
Contact your inverter supplier.
F07
HW NTC2 Fail
(Boost Temp
Fault)
Internal fault
Contact your inverter supplier.
F08
HW NTC3 Fail
(Bidir. Temp
Fault)
Internal fault
Contact your inverter supplier.
F09
HW NTC4 Fail
(Inverter Temp
Fault)
Internal fault
Contact your inverter supplier.
F10
HW RLY
(AC RLY Fault)
Internal device fault
Contact your inverter supplier.
F13
HW DSP ADC1
(AC Sensor
Fault)
Internal fault
Contact your inverter supplier.
F15
HW DSP ADC2
(Vdc Sensor
Fault)
Internal fault
Contact your inverter supplier.
F16
HW DSP ADC3
(Idc Sensor
Fault)
Internal fault
Contact your inverter supplier.
F17
HW Red ADC1
(AC Sensor
Fault)
Internal fault
Contact your inverter supplier.
F18
HW Red ADC2
(Idc Sensor
Fault)
Internal fault
Contact your inverter supplier.
F19
49
Error message and Trouble Shooting