Step 5 Open the maintenance compartment door, install a support bar, and use a
multimeter to measure the phase voltages of the AC terminal block. Ensure that
the AC side of the solar inverter is disconnected.
Step 6 Turn o all DC input switches of the solar inverter.
Figure 8-1 Power-o for maintenance
Step 7 Wait for 15 minutes and troubleshoot or repair the inverter.
● Do not open the host panel for maintenance if the solar inverter is emitting
odor or smoke, or has obvious exceptions.
● If the solar inverter does not emit odor or smoke and is intact, repair or restart
it based on the alarm handling suggestions. Do not stand in front of the solar
inverter during the restart.
----End
8.3 Routine Maintenance
To ensure that the solar inverter can operate properly for a long term, you are
advised to perform routine maintenance on it as described in this chapter.
SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual 8 Maintenance
Issue 07 (2023-04-30) Copyright © Huawei Technologies Co., Ltd. 104
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