Sungrow SH3K6 - Maintenance; Routine Maintenance; Replacing the Button Cell

8 Troubleshooting and Maintenance User Manual
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8.2 Maintenance
8.2.1 Routine Maintenance
Item
Method
Period
General
status of the
system

Visual check for any damage or
deformation 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
Electrical
connection
Check whether there is damage to the
cables, especially the surface in contact
with metal.
6 months after
commissioning and
then once or twice a
year.
8.2.2 Replacing the Button Cell
Disconnect the AC circuit breaker and then set the DC load-break
switch of the inverter to OFF, then disconnect the inverter from the
battery before any maintenance work.
Lethal voltage still exists in the inverter. Please wait at least 10 minutes
and then perform maintenance work.
There is a button cell on the inner PCB board of the LCD. Contact SUNGROW
for replacement when the relevant fault alarm occurs.
Check the fastener, appearance, voltage, and resistance quarterly and annually.