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9.2.2 Routine Maintenance
Item Method Period
Device clean
Check the temperature and dust of the
inverter. Clean the inverter enclosure if
necessary.
Six months to a year
(depending on the dust con-
tents in air)
Electrical
connection
Check whether all cable are firmly con-
nected in place.
Check whether there is damage to the
cables, especially the surface in con-
tact with metal.
6 months after commissioning
and then once or twice a year
General status
of the system
• Visual check for any damage or de-
formation of the inverter.
• Check any abnormal noise during
the operation.
• Check each operation parameter.
• Be sure that nothing covers the
heat sink of the inverter.
Every 6 months
9 Troubleshooting and Maintenance User Manual
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