Huawei NetCol5000-A050 User Manual page 256

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Symptom
The
humidity of
the
computer
room is
high, or
condensate
water is
generated.
Power
failures
occur on
the active
and
standby
routes.
The electric
heater
switch trips
abnormally
.
The electric
heater
fails.
Issue 08 (2021-09-17)
Possible Cause
The liquid level detector is
faulty.
The inlet pipe and drainpipe
leak.
The automatic drainage pipe
is blocked.
The server heat load for each
smart cooling product is lower
than 5 kW.
1. The input power has an
open phase.
2. The contactor fuse in the
active route is damaged.
3. The interlock contactor and
middle contactor are
damaged.
The switch is faulty.
The electric heater contactor is
not closed.
Copyright © Huawei Technologies Co., Ltd.
10 Troubleshooting
Solution
Check the alarm. Check cable
connections for high and low
liquid level detectors. Check
whether the liquid level detectors
are damaged. If necessary,
replace the liquid level detectors.
Check the inlet pipe and
drainpipe and the connectors.
Rectify any leakage and fasten
the connectors.
Check whether the automatic
drainage port is blocked and
whether the automatic drainage
pipe contains foreign matter or is
frozen.
● Verify that the doors,
windows, floors, and ceilings
of the computer room are
properly sealed.
● If the outdoor humidity is too
high, shut down the fresh air
system.
● Open the aisle doors or
control skylights of the smart
module, or open the filler
panels of some server
cabinets.
1. Rectify the power supply fault.
2. Replace the fuse.
3. Replace the interlock
contactor and middle
contactor.
Replace the electric heater
switch.
Replace the electric heater
contactor.
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