User Manual
9 Troubleshooting and Maintenance
49
9.2
Routine Maintenance
Risk of inverter damage or personal injury due to incorrect service!
Always keep in mind that the inverter is powered by dual sources: PV array
and utility grid.
Before any service work, observe the following procedure.
y
Disconnect the inverter from the utility grid side first and then PV array;
y
Wait at least 10 minutes for inner capacitors to discharge completely;
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Verify that no voltage and current existing with appropriate testing
devices.
Keep non-related persons away!
A temporary warning sign or barrier must be posted to keep non-related
persons away while performing electrical connection and service work.
Risk of inverter damage if it is improperly serviced.
Use accessories and spare parts approved by the inverter manufacturer
only. Never modify the inverter or other components of the inverter. The
loss of any or all warranty rights may follow if otherwise.
Any malfunction that may impair the inverter safety operation must be
repaired immediately before the inverter is restarted.
Inverter contains no customer serviceable parts inside. Please contact local
authorized personnel if any service work is required.
