Routine maintenance
Routine maintenance operations should not be considered obligatory,
but rather as recommended in order to maintain the efciency of the PV
system.
It is recommended that maintenance operations are only performed by qualied personnel.
The maintenance schedule may vary depending on the environmental conditions of the in-
stallation premises.
Table: routine maintenance
Annual visual
inspections
• Check that the inverter is operating properly, without any alarm signals
• Ensure that all the safety labels and symbols are visible
• Check the integrity of the cables, connectors and cable glands outside the
inverter
• Check that the environmental conditions have not changed dramatically from
those on installation
Annual operations
• Check the tightening of the cable glands and of the screw terminal blocks
• Check the front cover is fixed
• If there is no monitoring system, check the record of alarms and errors using
the indications given in the manual in order to check recent malfunction signals
Annual cleaning
• Clean the equipment; in particular the heat sink (using compressed air)
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