Huawei SUN2000-330KTL-H1 User Manual page 83

SUN2000-(330KTL-H1, 330KTL-H2)
User Manual
Alar Alarm
m ID Name
2066 License
Expired
2086 Abnorm
al
External
Fan
2087 Abnorm
al
Internal
Fan
2088 Abnorm
al DC
Protecti
on Unit
2093 Abnorm
al DC
Switches
Issue Draft A
(2022-08-30)
Alarm Possible Cause
Severity
Warning Cause ID = 1
1. The license has entered
the grace period.
2. The license is about to
expire.
Major Cause ID = 1–4,
corresponding to external
fans FAN1–FAN4.
The external fan is short-
circuited, the power supply
is insufficient, or the air
channel is blocked.
Major Cause ID = 1 and 2,
corresponding to internal
fans FAN1 and FAN2.
The internal fan is short-
circuited, the power supply
is insufficient, or the fan is
damaged.
Major Cause ID = 3
The contact points of the
DC switches are stuck.
Minor Cause ID = 1
The DC switch is not in the
ON position, or the DC
switch reset button is not
pressed down to the
bottom.
Copyright © Huawei Technologies Co., Ltd.
Suggestion
1. Apply for a new license certificate.
2. Load the new license certificate.
1. Turn off the AC and DC switches,
check whether the fan blades are
damaged, and clear the foreign
matter around the fan.
2. Reinstall the fan and turn on the
AC and DC switches. If the fault
persists after the device runs for
15 minutes, replace the external
fan.
Turn off the AC and DC switches, wait
for 5 minutes, and then turn on the
AC and DC switches. If the fault
persists after the device runs for 5
minutes, contact your dealer or
technical support to replace the
device.
1. If the DC indicator on the panel is
off, contact your dealer or
technical support to replace the
device.
2. If the DC indicator on the panel is
on, wait until the PV string current
decreases to below 0.5 A, turn off
the AC switch and DC switch, wait
for 5 minutes, and then turn on
the AC switch and DC switch. If
the fault persists after the device
runs for 5 minutes, contact your
dealer or technical support.
Check whether all DC switches are in
the ON position. If not, turn the
switches to the ON position (you can
rotate the switches with force to
ensure that they are in position). If
the switches still cannot be turned to
the ON position, press the reset
buttons of all DC switches inwards
until they cannot go further, and then
turn on the DC switches again.
8 Maintenance
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