Maintenance; Routine Maintenance - Sungrow SG3KTL-EC User Manual

9 Troubleshooting and Maintenance
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
Save data Save the running data, parameters and log to
a disk or a file.
Visual check for any damage or deformation
of the inverter.
Check any abnormal noise during the
General
running of the inverter.
state of
Check each parameter of inverter operation.
system
Check if the temperature of the housing is
normal. Monitor the system using the thermal
imager.
System Check the temperature and dust of the
clean inverter.
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.
Electrical Check whether cable connections are loose.
connection 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.
Fan Check whether there is crack of the fan blade
Check whether there is any abnormal noise
when the fan is turning.
68
Clean the inverter
Period
Once 31 days
Every 6 months
Six months to a year
enclosure, (it depends on the
dust contents in air.)
Six months
commissioning and
then once or twice a
year.
Once a year
User Manual
after