FusionModule1000B Air-Cooled IT Solution
Maintenance Guide
5 Alarms and Faults
Issue 02 (2017-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
75
Fault
Category
Alar
m
Sever
ity
Symptom
Possible
Cause
Troubleshooting
If the power supply is
normal, the indoor
fan is faulty. Replace
by following
instructions in
Replacing the
Indoor Fan
in the air
conditioner user
manual, and check
whether the
abnormality
disappears.
If the power supply is
abnormal:
1.
Check whether the
QF4 switch on the
power subrack is
turned on. If yes,
go to the next
step.
2.
Open the front
door, and check
whether the fan
fuse at the bottom
is blown (fuses
FU9-FU16 from
the top to the
bottom are for
fans 1-8
respectively). If a
fuse is blown,
replace it.
Major
Water overflows.
The drainpipe is
not properly
connected.
Verify that the drainpipe
is connected.
A float switch is
faulty.
Check the float cables,
and check whether the
float is damaged or not
flexible. If the float is
damaged or jammed,
adjust the float or replace
it by following
instructions in
Replacing
the Float
in the air
conditioner user manual.
The water inlet
pipe leaks.
Check whether the water
inlet pipe leaks. If yes,