NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
6 System Operation and Maintenance
Copyright © Huawei Technologies Co., Ltd.
The comp shuts down due
to the driver fault for
multiple times.
Check whether other
alarms of the comp driver
are generated.
1. The power supply
voltage is high.
2. The comp driver is
faulty.
3. The comp is faulty.
1. Check the power
supply voltage.
2. Maintain or replace the
comp driver.
3. Maintain or replace the
comp.
1. The power supply
voltage is low.
2. The comp driver is
faulty.
3. The comp is faulty.
4. The main power supply
is faulty or the cables to
the comp driver are
loose or damaged.
1. Check the power
supply voltage.
2. Maintain or replace the
comp driver.
3. Maintain or replace the
comp.
4. Reconnect the main
power supply or the
cables to the comp
driver.
1. The comp is in lack of
oil.
2. The condenser fins are
blocked.
3. The outdoor units do
not run properly.
4. The solenoid valve is
faulty.
5. The refrigerant is
overfilled.
6. The comp is faulty.
1. Fill oil to the comp.
2. Clean the condenser
fins.
3. Maintain or replace the
outdoor units.
4. Maintain or replace the
solenoid coil or the
solenoid valve.
5. Decrease certain
amount of refrigerant.
6. Maintain or replace the
comp.
1. The comp is in lack of
oil.
2. The condenser fins are
blocked.
3. The outdoor units do
not run properly.
4. The solenoid valve is
faulty.
5. The refrigerant is
overfilled.
6. The comp is faulty.
1. Fill oil to the comp.
2. Clean the condenser
fins.
3. Maintain or replace the
outdoor units.
4. Maintain or replace the
solenoid coil or the
solenoid valve.
5. Decrease certain
amount of refrigerant.
6. Maintain or replace the
comp.
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