Troubleshooting
Troubleshooting
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7 Troubleshooting
7.1 Trouble shooting
This section contains information and procedures for solving possible
problems with X3-PRO G2 series inverters, and provides you with
troubleshooting tips to identify and solve most problems that could occur
with the X3-PRO G2 series inverters.
This section will help you narrow down the source of any problems you may
encounter. Please read the following troubleshooting steps.
Check warnings or fault messages on 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.
Faults
Diagnosis and Solution
TzFault
Over Current Fault.
-Wait for about 10 seconds to check if the inverter is back
to normal.
-Disconnect the DC switch and restart the inverter.
-Or seek help from us.
GridLostFault
Grid Lost Fault.
-Check if the mains cable is loose.
-Wait for a while and the system will reconnect when the
utility is back to normal.
-Or seek help from us.
GridVoltFault
Grid Voltage Out of Range.
-Check if the mains cable is loose.
-Wait for a while and the system will reconnect when the
utility is back to normal.
-Or seek help from us.
GridFreqFault
Grid Frequency Out of Range.
-Wait for a while and the system will reconnect when the
utility is back to normal.
-Or seek help from us.
PvVoltFault
PV Voltage Fault.
-Check whether the PV is overvoltage.
-Or seek help from us.
BusVoltFault
DC Bus Voltage Out of Normal Range.
-Check if the PV input voltage is within the operating
range of the inverter.
-Disconnect PV wiring and reconnect.
-Or seek help from us.
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Faults
Diagnosis and Solution
GridVolt10MFault
Grid Overvoltage for Ten Minutes Fault.
-The system will reconnect when the utility is back to
normal.
-Or seek help from us.
DcInjOCP
DCI Overcurrent Protection Fault.
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
HardLimitFault
Hard Limit Fault (in Australian standard).
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
SW OCP Fault
Software Overcurrent Protection Fault.
-Wait for a while to check if the inverter is back to normal.
-Disconnect PV and grid, then reconnect.
-Or seek help from us.
ResidualOCP
Overcurrent Protection Fault.
-Check the connections of the inverter.
-Wait for a while to check if the inverter is back to normal.
-Or seek help from us.
IsoFault
Isolation Fault.
-Check the connections of the inverter.
-Or seek help from us.
OverTempFault
Over Temperature Fault.
-Check if the inverter and the ambient temperature
exceeds the operating range.
-Or seek help from us.
LowTempFault
Low Temperature Fault.
-Check if the ambient temperature is too low.
-Or seek help from us.
InternalComFault
Internal Communication Fault.
-Restart the inverter to check if it is back to normal.
-Update the ARM software or reburn the program.
-Or seek help from us.
FanFault
Fan Fault.
-Check whether the fan is faulty or damaged.
-Or seek help from us.
AcTerminalOTP
AC Terminal Overtemperature Fault.
-Check if the AC terminals are tightly connected.
-Check if the ambient temperature exceeds the
operating range.
-Or seek help from us.
