Huawei NetCol8000-C070 User Manual page 171

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Symptom
The
FusionCol8000-C
leaks at the
bottom.
Drainage capacity
of the
NetCol8000-C
decreases.
The heating
function fails.
No water is
supplied to the
water inlet
solenoid valve of
the humidifier.
Issue 07 (2021-12-30)
Possible Cause
The temperature and
humidity thresholds are
improper.
Alarms, such as water
overflow and no
refrigerant output, are
generated.
The chilled water valve
is faulty or the cable
connection is incorrect.
The thermal insulation
foam of the
NetCol8000-C is
damaged.
The drainpipe is blocked. Ensure that the drainpipes are
The pipes leak.
The water inlet solenoid
valve cannot be closed.
The drainpipe is bend or
trapped.
The electric heater
temperature switch is
being protected.
An electric heater is
burnt out.
The upstream water
supply is faulty or the
water pressure is below
the lower threshold.
The water inlet solenoid
valve is blocked or
faulty.
Copyright © Huawei Technologies Co., Ltd.
6 Maintenance
Troubleshooting
Adjust the temperature and
humidity thresholds.
Check the alarm causes and
clear the alarm manually.
Replace the actuator or
reconnect the cable.
Check whether thermal
insulation foam of the
NetCol8000-C is securely
installed and repair the
damaged thermal insulation
tube.
not over-bent and the drainpipe
connectors are securely installed.
Check the pipes and weld the
pipe or fasten related bolts if the
pipes leak.
Replace the water inlet solenoid
valve.
Check that drainpipes are free
from bends and traps. Ensure
that the height difference for
drainage is enough.
Check whether the temperature
switch is faulty. Replace the
faulty switch.
Disconnect the power supply
and check whether the electric
heater is damaged by checking
the electric heater resistance
properties with an ohmmeter.
Restore the water supply.
Replace the water inlet solenoid
valve.
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