FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
4 Alarms and Faults
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
66
Fault
Category
Alarm
Severity
Symptom
Possible
Cause
Troubleshooti
ng
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
perform
replacement by
following
instructions in
the "Replacing
a Float" section
in
NetCol5000-A
20 kW
Air-Cooled
In-Row
Precision Air
Conditioner
User Manual
.
The water inlet
pipe leaks.
Check whether
the water inlet
pipe leaks. If
yes, repair the
leakage point.
The drainpipe is
blocked or the
drainage
solenoid valve
is faulty.
Check whether
the drainpipe is
blocked by
foreign matter
or scale. If yes,
close the water
refill port, drain
water from the
water pan, and
remove the
blockage.
For other alarms of the 20 kW air-cooled precision air conditioner, see
NetCol5000-A 20 kW Air-Cooled
In-Row Precision Air Conditioner User Manual
.