Sungrow SG3KTL-EC, Руководство пользователя

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9 Troubleshooting and Maintenance User Manual
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Should you have any problems in operating the inverter, please contact
us:
Service hotline: +86 551 6532 7834/6532 7845
Email: service@sungrow.cn
We need the following information to provide you the best assistance:

Type of the inverter

Serial number of the inverter

Fault code/name

Brief description of the problem
9.2 Maintenance
9.2.1 Routine Maintenance
Item Method Period
Save data Save the running data, parameters and log to
a disk or a file. Once 31 days
General
state of
system
Visual check for any damage or deformation
of the inverter.
Check any abnormal noise during the
running of the inverter.
Check each parameter of inverter operation.
Check if the temperature of the housing is
normal. Monitor the system using the thermal
imager.
Every 6 months
System
clean Check the temperature and dust of the
inverter. Clean the inverter enclosure,
especially the heat sink. Check the humidity
and dust of the environment. Meanwhile
check whether the filter function of the air
inlet is ok. Clean the air inlet and outlet, when
necessary. Six months to a year
(it depends on the
dust contents in air.)
Electrical
connection Check whether cable connections are loose.
Tighten the loose connections.
Check whether there is damage the cables,
especially the surface in contact with metal.
Check whether the wrap belt of the
connection terminals is strip-off.
Six months after
commissioning and
then once or twice a
year.
Fan Check whether there is crack of the fan blade
Check whether there is any abnormal noise
when the fan is turning. Once a year