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.
52
A high temperature may lead to fire or equipment damage. Therefore, a high temperature
alarm must be immediately handled. This section can be used as a reference only after the
temperature becomes normal.
Fault
Category
Alar
m
Sever
ity
Symptom
Possible
Cause
Troubleshooting
Overtemp
erature
Critica
l
The onsite
temperature is too
high.
The air
conditioners are
powered off.
Check whether the
circuit breaker is OFF
in the PDC.
Check whether the air
conditioner power
cables are connected
properly.
The air
conditioners are
not turned on.
Turn on the air
conditioners.
The air
conditioner is
not properly set.
Verify that the
temperature and
humidity settings are
consistent with the
settings specified in the
cooling system initial
parameter configuration
manual.
An air
conditioner
component is
faulty.
Replace faulty parts by
following instructions in
NetCol5000-A 20 kW
Air-Cooled In-Row
Precision Air
Conditioner User
Manual
.
The power load
exceeds the
designed
cooling
capacity.
Refer to the section
"Emergency Operations
for Overload."
The onsite
temperature is
normal.
The T/H sensor
is faulty.
Replace the remote T/H
sensor for an air
conditioner.
Undertem
perature
Warni
ng
The onsite
temperature is too
low.
The load ratio is
too low.
Shut down some air
conditioners.