Huawei SUN2000-75KTL Series - Troubleshooting

Check Item Check Method Maintenance
Interval
Cables
connections
● Cables are securely connected.
● Cables are intact, and in
particular, the parts touching
the metallic surface are not
scratched.
● Check whether the sealing caps
of idle DC input terminals fall
o.
● Unused terminals and ports are
locked by watertight caps.
The rst inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 to
12 months.
Grounding
reliability
Ground cables are securely
connected.
The rst inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 to
12 months.
Clear vegetation
around the
inverters
● Perform inspection and weeding
as required.
● Clean the site promptly after
weeding.
Based on the local
wilting season
Figure 8-3 Removing the
bae of the air intake vent
NO TICE
After the cleaning is complete, reinstall the bae plate. Tighten the screws with a
torque of 1.2 N·m.
8.4 Troubleshooting
Alarm severities are dened as follows:
● Major: The inverter is faulty or the external environment is abnormal. As a
result, the output power decreases or the inverter stops feeding into the grid.
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 15 (2023-01-31) Copyright © Huawei Technologies Co., Ltd. 117