NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual
5 System Operation and Maintenance
Issue 01 (2014-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
91
If yes, tighten the bolts and check whether the fault is rectified.
−
If yes, troubleshooting is complete.
−
If no, go to
Step 2
.
If no, go to
Step 2
.
Step 2
Check whether the fan fastening bolts are loose.
If yes, tighten the bolts and check whether the fault is rectified.
−
If yes, troubleshooting is complete.
−
If no, go to
Step 3
.
If no, go to
Step 3
.
Step 3
Check whether the pipe fastening bolts are loose.
If yes, tighten the pipe support and check whether the fault is rectified.
−
If yes, troubleshooting is complete.
−
If no, go to
Step 4
.
If no, go to
Step 4
.
Step 4
Contact Huawei technical support.
----End
5.5.2 A Compressor does not Work
Symptom
The compressor does not work.
Possible Causes
The device generates the faulty alarms.
A compressor does not need to start.
Compressor power failure.
A compressor is faulty.
Procedure
Step 1
Check whether the device generates the faulty alarms as follows:
Comp HP switch
,
Comp
HP switch lock
,
Comp suction LP
,
Comp suction LP lock
,
Comp dis HT
,
Comp dis HT
lock
,
Power phase A/B/C overvolt
or
Power phase A/B/C undervolt
,
Power overfreq
or
Power underfreq
,
Power phase loss
,
Power phase reverse
,
Remote shutdown
,
Floor
water overflow
,
Comp freeze point protection
,
Full water
,
Surge protection board fault
,
Power fault
,
Route A/B/C/D fuse disconnect
,
Indoor fan failure
.
If there is one or more, deal with it by referring to
5.4 Alarm Reference
and then check
whether the fault is rectified.
−
If yes, troubleshooting is complete.
−
If no, go to
Step 2
.
If there are no alarms, go to
Step 2
.
