Sungrow SunBox PVS-8M, Руководство пользователя

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6 Routine Maintenance
Due to ambient temperature, relative humidity, windblown dust and vibrations,
components of PVS will get aging. It is necessary to do the routine maintenance
work periodically on the device.
Only qualified electricians can do the maintenance work described in this
chapter.
After the maintenance work finished, be sure not to leave screws, washers
and the like in the PVS. The device can be damaged
！
Only work on the PVS when it is switched off and voltage free. Fuses are
non-resetting once they are broken. After many times replacement, the fuse holders
will get loose. Users should fasten the fuse holders periodically to ensure valid
connections.
6.1 Replace the Fuse
Method to replace fuse:
Step 1 Remove fuse cover
Step 2
Replace the fuse by a new one
Step 3
Restore fuse cover