- 41-
Error code
Description
Solutions
F22
Tz_EmergStop_Fault
Remotely shutdown
1, it tells the inverter is remotely controlled.
F23
Tz_GFCI_OC_ current is
transient over current
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.
F24
DC insulation failure
F26
The DC busbar isunbalanced
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.
F48
AC lower frequency
Grid frequency out of range
1. Check the frequency is in the range of specification or not;
2. Check whether AC cables are firmly and correctly connected;
3. Seek help from us, if can not go back to normal state.
F29
Parallel CAN Bus fault
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.
F34
AC Overcurrent fault
F41
Parallel system stop
F42
AC line low voltage
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
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
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.
F21
Tz_HV_Overcurr_fault
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.
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