35
Fault
Name
Fault Code Corrective Measure
739
1. Switch off the battery system, and restart it after 5
minutes.
2. Please contact the installer or the manufacturer if the
issue persists for a long time. Switch off the battery sys-
tem immediately if the SOC drops below 3% to avoid
damage caused by battery over-discharge.
740
1. Check whether the client RACK is incorrectly or
loosely connected. Switch off the battery, and restart it
after 5 minutes.
2. Please contact the installer or the manufacturer if the
issue persists for a long time. Switch off the battery sys-
tem immediately if the SOC drops below 3% to avoid
damage caused by battery over-discharge.
741
1. Please contact the installer or manufacturer to up-
grade the hybrid inverter, WiNet, and battery software to
the latest version.
2. If the problem is not resolved, please check whether
the system configuration is correct (SUNGROW single-
phase hybrid inverter used with battery system consisting
of 2~6 PACKs; SUNGROW three-phase hybrid inverter
used with battery system consisting of 3~8 PACKs).
3. Please contact the installer or the manufacturer if the
issue persists for a long time. Switch off the battery sys-
tem immediately if the SOC drops below 3% to avoid
damage caused by battery over-discharge.
742
1. Please check whether the power cables are con-
nected in inverse or poorly connected.
2. Please contact the installer or the manufacturer if the
issue persists for a long time. Switch off the battery sys-
tem immediately if the SOC drops below 3% to avoid
damage caused by battery over-discharge.
User Manual 8 Troubleshooting and Maintenance
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