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7
Routine Maintenance
The internal devices of the combiner box would be aging and wearing due to
the ambient temperature, humidity, dust and vibration,,which may cause
potential failures to the combiner box.
Only qualified electricians are allowed to perform the maintenance as
described in this chapter.
Do not leave screws, washers or other metal parts in the combiner box
after maintenance, or they may damage the device!
Before maintaining the hardware of the combiner box, the combiner box must
be powered off to ensure that the parts to touch are not live.
7.1
Replacing the fuse
Safety Instructions
After the fuse is blown, it cannot be restored, and must be replaced by
a qualified operator immediately.
The fuse replacement must be of the same grade as the original one!
