Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Causes Suggestions
2086 External
Fan
Abnorm
al
Major Cause ID = 1–3: FAN 1–3
The external fan is short-circuited,
the power supply is insucient, or
the air channel is blocked.
1. Shut down the fan, turn o
the DC switch, check
whether the fan blades are
damaged, and clear the
foreign matter around the
fan.
2. Reinstall the fan, turn on
the DC switch, and wait for
the solar inverter to start.
If the fault persists after 15
minutes, replace the
external fan.
2087 Internal
Fan
Abnorm
al
Major Cause ID = 1
The internal fan is short-circuited,
the power supply is insucient, or
the fan is damaged.
Turn o the AC output switch
and then the DC input switch.
Turn them on after 5 minutes
and wait for the solar inverter
to connect to the power grid.
If the fault persists, contact
your dealer or Huawei
technical support.
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd. 121
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