Alarm
ID
Alarm
Name
Alarm
Severit
y
Possible Causes Suggestions
61440 Faulty
Monitori
ng Unit
Minor Cause ID = 1
1. The ash memory is
insucient.
2. The ash memory has bad
sectors.
Turn o the AC output switch
and DC input switch, and then
turn them on after 5 minutes.
If the fault persists, replace
the monitoring board or
contact your dealer or Huawei
technical support.
If you cannot rectify faults with the measures listed in the Suggestions column, contact
your dealer or Huawei technical support.
8.5 Replacing a Fan
● Before replacing a fan, power o the inverter.
● When replacing a fan, use insulation tools and wear personal protective
devices.
If the fan tray gets stuck when being pulled or pushed, slightly lift it.
Step 1 Remove the screw on the fan tray and save it. Pull out the fan tray until the fan
bae plate aligns with the inverter chassis.
Figure 8-4 Pulling out fan tray (1)
Step 2 Remove the cable ties shared by the cables, unscrew the connectors, and
disconnect the cables.
SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 11 (2021-11-10) Copyright © Huawei Technologies Co., Ltd. 123
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