Error code
Description
F21
Tz_HV_Overcurr_fault
Tz_EmergStop_Fault
F22
Tz_GFCI_OC_ current is
F23
transient over current
F24
DC insulation failure
F26
The DC busbar isunbalanced
Parallel CAN Bus fault
F29
F34
AC Overcurrent fault
F41
Parallel system stop
AC line low voltage
F42
BUS over current.
1, Check the PV input current and battery current setting
2. Restart the system 2~3 times.
3. If the fault still exists, please contact us for help.
Remotely shutdown
1, it tells the inverter is remotely controlled.
Leakage current fault
1. Check PV side cable ground connection.
2. Restart the system 2~3 times.
3. If the fault still exists, please contact us for help.
PV isolation resistance is too low
1. Check the connection of PV panels and inverter is firmly and
correctly;
2. Check whether the PE cable of inverter is connected
to ground;
3. Seek help from us, if can not go back to normal state.
1. Please wait for a while and check whether it is normal;
2. When the load power of 3 phases is big different, it will report
the F26.
3 .When there's DC leakage current, it will report F26
4. Restart the system 2~3 times.
5. Seek help from us, if can not go back to normal state.
1. When in parallel mode, check the parallel communication
cable connection and hybrid inverter communication
address setting;
2. During the parallel system startup period, inverters will report
F29.But when all inverters are in ON status, it will disappear
automatically;
3. If the fault still exists, please contact us for help.
1, Check the backup load connected, make sure it is in allowed
power range
2, If the fault still exists, please contact us for help
1, Check the hybrid inverter work status. If there' 1pcs
hybrid inverter shutdown, all hybrid inverters
will report F41 fault.
2, If the fault still exists, please contact us for help
Grid voltage fault
1. Check the AC voltage is in the range of standard voltage
inspecification;
2. Check whether grid AC cables are firmly and correctly
connected;
3. Seek help from us, if can not go back to normal state.
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Solutions
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