1. System will shut down.
Suggestions:
1. Check battery SOC and voltage，whether it’s close to the voltage point of program 21
setting.
4 Inverter fault
4. 1 Error 01
Fault description:Fan is locked.
Analysis：
1. The cable of fan is loosed.
2. The fan is stucked by obstruction or the fan is damaged.
3. power supply of the fan is abnormal.
Suggestion:
1. Turn off DC switch and AC breaker, and check the fan. If there is an obstruction of the
fan, please remove it and clean the fan well. Turn on the inverter to check whether the
warning still exists or not.
2. If the warning still exists after step 1, turn off DC switch and AC breaker again, remove
the fan from inverter with screw driver to do cleaning or replacement.
a. Remove the protect baffle of the fan with hex wrench.；
b. Disconnect the cables from fan with screwdriver；
c. Remove the screws from the protect plate on the fan, clear up dust and
sundries on the fan.；
d. If cleaning does not help, please replace the fan with a new one.
3. If the problem still remains, please contact Growatt Service for further solutions.
4. 2 Error 02
Fault description:Over temperature.
Analysis：
1. The NTC cable inside the SPF is abnormal.
2. It may be that the machine is placed in an environment where the temperature exceeds
the allowable temperature range of SPF.
3. Internal temperature of component is over 100℃.
Suggestion:
1. Check if the installation environment of the machine is conducive to heat dissipation.
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