Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Causes Suggestions
2063 Cabinet
Overte
mperatu
re
Minor Cause ID = 1
1. The solar inverter is installed in
a place with poor ventilation.
2. The ambient temperature is
too high.
3. The solar inverter is not
working properly.
1. Check the ventilation and
whether the ambient
temperature of the solar
inverter exceeds the upper
limit. If the ventilation is
poor or the ambient
temperature is too high,
improve ventilation.
2. If both the ventilation and
ambient temperature meet
requirements yet the fault
persists, contact your
dealer or Huawei technical
support.
2064 Device
Fault
Major Cause ID = 1–15
An unrecoverable fault has
occurred on a circuit inside the
solar inverter.
Turn o the AC output switch
and DC input switch, and then
turn them on after 5 minutes.
If the fault persists, contact
your dealer or Huawei
technical support.
NOTICE
Cause ID = 1: Perform the
preceding operations when the
PV string current is less than 1 A.
2065 Upgrade
Failed
or
Softwar
e
Version
Unmatc
h
Minor Cause ID = 1–4
The upgrade does not complete
normally.
1. Perform an upgrade again.
2. If the upgrade fails for
multiple times, contact
your dealer or Huawei
technical support.
2066 License
Expired
Warnin
g
Cause ID = 1
1. The privilege license has
entered the grace period.
2. The privilege feature will be
invalid soon.
1. Apply for a new license.
2. Load a new license.
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 117
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