SOFAR 3.3~12KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
Ensure the installation position and installation
method
meet the requirements of this user manual. Check
whether the ambient temperature of the
installation position exceeds the upper limit. If yes,
improve ventilation to decrease the temperature.
Check whether the inverter has dust and dust,
whether there are foreign matters blocking the fan
at the air inlet. If so, please improve the ventilation
and heat dissipation of the environment. It is
recommended that the inverter should be cleaned
once every half a year.
Heat sink1
over-temperature
protection
environment
temperature1 protection
Model 1
over-temperature
protection
Unbalanced RMS value of
bus voltage
There are internal faults of inverter, turn OFF the
“DC switch”, wait for 5 minutes, then turn ON the
“DC switch”. Check whether the fault is rectified. If
no, please contact technical support.
Unbalanced
instantaneous value of
bus voltage
Bus undervoltage during
grid connection
If the configuration of the PV array is correct, could
be the sun irradiation is too low. Once sun
irradiation back to normal, inverter will work back
normal
There are internal faults of inverter, turn OFF the
“DC switch”, wait for 5 minutes, then turn ON the
“DC switch”. Check whether the fault is rectified. If
no, please contact technical support.