F55
DC busbar voltage is too high
F56
DC busbar voltage is too low
IGBT heat sink high
F64
Heat sink temperature is too
Note:
1. Serial number of the inverter;
2.
3.
4.
5. Your contact details.
temperature
high
1. Check PV input voltage and Ubus voltage via LCD or
monitoring platform;
2. Disconnect DC switch and AC switch, and reconnect DC
switch and AC switch 10min later to restart the inverter;
3. If the fault still exists, please contact us for help.
1. Check PV input voltage and Ubus voltage via LCD or
monitoring platform;
2. Disconnect DC switch and AC switch, and reconnect DC
switch and AC switch 10min later to restart the inverter;
3. If the fault still exists, please contact us for help.
1. Check whether the work environment temperature is too high;
2. Turn off the inverter for 10mins and restart;
3. Seek help from us, if can't go back to normal state.
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