Troubleshooting - Huawei NetCol5000-C User Manual

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
Alarm
Alarm Name
ID

6.4 Troubleshooting

Table 6-6
Table 6-6 Common faults of NetCol5000-C and handling methods
Symptom
The fan does not rotate
after the NetCol5000-C
starts.
The humidity and
temperature sensor
cannot detect the
humidity and
temperature.
The fan generates loud
noises.
The NetCol5000-C
leaks.
A NetCol5000-C is
Issue 02 (2013-12-10)
System
Severity
Operation
describes the common faults of NetCol5000-C and handling methods.
Possible Causes
 The power supply module of the
fan is faulty or abnormal
(including the fuse of the power
supply module is blown.)
 The fan fuse is blown.
 Cables to the fan are faulty.

Parameter settings on the
controller are incorrect.
 DIP switches of the humidity and
temperature sensor are incorrectly
set.
 The humidity and temperature
sensor is faulty.
 The air filter is blocked.
 Dirt exists at the fan air exhaust
vent.
 The fan is not securely installed.

The fan is faulty.
 The thermal insulation tube of the
NetCol5000-C is damaged.
 The condensate drainpipe is
blocked.
 The pipes leak.
 The jumper cap of the chilled
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6 System Operation and Maintenance
Possible Causes
Troubleshooting
 Ensure that the power supply module
of the fan is inserted to the subrack. If
the fault persists, replace the power
supply module (or replace the fuse).
 Replace the fan fuse.
 Check whether the cables to the fan
short-circuit or are disconnected.

Check that the humidity and
temperature sensor is enabled on the
controller.

Check that DIP switches of the
humidity and temperature sensor map
the corresponding aisle.

If the fault persists after the preceding
operations, replace the humidity and
temperature sensor.
 Clean the air filter.
 Clear the fan air exhaust vent.
 Fasten the fan screws

Replace the fan.
 Check whether thermal insulation tube
of the NetCol5000-C is securely
installed and repair the damaged
thermal insulation tube.
 Ensure that the drainpipes are not bent
by a large angle, the drainpipe
connectors are securely installed, the
condensate pump is not faulty, and the
floats are not faulty.
 Check the pipes and weld the pipe or
fasten related bolts if the pipes leak.
 Check the W1 jumper of the chilled
Recovery Measures
sensor.
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