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Troubleshooting and Maintenance
Error Code Fault Diagnosis and Solutions
IE 04 Grid Freq Fault Grid overfrequency
• Wait a moment, if the utility returns to normal, the
system reconnects.
• Contact SolaX for help.
IE 05 PV Volt Fault PV overvoltage
• Check the output voltage of the PV panel.
• Contact SolaX for help.
IE 06 Bus Volt Fault • Press the ESC key to restart the inverter.
• Check if the PV input open circuit voltage is in the
normal range.
• Contact SolaX for help.
IE 07 Bat Volt Fault Battery voltage fault
• Check if the battery input voltage is within normal
range.
• Contact SolaX for help.
IE 08 AC10mins Volt Grid voltage out of range in the last 10 minutes
• The system will return to normal if the grid returns
to normal.
• Contact SolaX for help.
IE 09 DCI OCP Fault DCI overcurrent protection fault
• Wait for a while to check if it's back to normal.
• Contact SolaX for help.
IE 10 DCV OVP Fault DCV EPS (Off-grid) overvoltage protection fault
• Wait for a while to check if it's back to normal.
• Contact SolaX for help.
IE 11 SW OCP Fault Software detection of overcurrent fault
• Wait for a while to check if it's back to normal.
• Shut down photovoltaic, battery and grid
connections.
• Contact SolaX for help.
IE 12 RC OCP Fault Overcurrent protection fault
• Check the impedance of DC input and AC output.
• Wait for a while to check if it's back to normal.
• Contact SolaX for help.
IE 13 Isolation Fault Insulation fault
• Please check the wire insulation for damage.
• Wait for a while to check if it's back to normal.
• Contact SolaX for help.
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