8 Troubleshooting
This section contains information and procedures for solving possible problems with the ESC-
Hybrid series inverters, and provides you with trouble shooting tips to identify and solve most
problems that could occur with the ESC-Hybrid series inverters.
This section will help you narrow down the source of any problems you may encounter. Please
read the following troubleshooting steps.
Check the warning or fault messages on the System Control Panel or Fault codes on the
inverter information panel. If a message is displayed, record it before doing anything
further.
Attempt the solution indicated in below table.
SCI communication fault
•Disconnect solar power PV+ , PV- and battery, reconnect
them.
•Or seek help from us, if cannot go back to normal state.
CAN communication fault
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Or seek help from us, if cannot go back to normal state.
SPI communication fault
•Disconnect solar power PV+ , PV- and battery, reconnect
them.
•Or seek help from us, if cannot go back to normal state.
PV Connection Setting Fault
• Resetting the PV connection
• Or seek help from us, if cannot go back to normal state.
Inverter EEPROM fault
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Or seek help from us, if can not go back to normal state.
The detection circuit Fault
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Or seek help from us, if cannot go back to normal state.
Residual Current Device Fault
• Check the impedance of DC input and AC output.
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Or seek help from us, if cannot go back to normal state.
Relay Fault
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Or seek help from us, if cannot go back to normal state.
Fan Device Fault
• Disconnect solar power PV+ , PV- and battery, reconnect
them.
• Check if the fan is stopped by dust or other foreign.
• Or seek help from us, if cannot go back to normal state.
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