Huawei NetCol5000-A User Manual page 150

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
Alarm
Alarm
ID
overvolt
Comp
a066
drive DC
undervolt
a067 Comp
drive
overload
a068 Comp
drive
overcurren
t
Comp
a069
start failed
a070 Comp
drive fan
fault
Comp
a071
drive
module
overheat
Issue 01 (2017-07-27)
Alarm
Impact
Severity
generated.
The alarm
Major
is
generated.
Major The alarm
is
generated.
Major The alarm
is
generated.
The alarm
Major
is
generated.
Major The alarm
is
generated.
The alarm
Major
is
generated.
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Possible Cause
2. The comp driver is faulty.
3. The comp is faulty.
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. The comp is in lack of
oil.
2. The condenser fins are
blocked.
3. The outdoor units are
faulty.
4. The refrigerant is
overfilled.
5. The comp is faulty.
1. The comp is in lack of
oil.
2. The condenser fins are
blocked.
3. Outdoor fans run
abnormally.
4. The refrigerant is
overfilled.
5. The comp is faulty.
1. The comp is in lack of
oil.
2. The comp is faulty.
3. The comp driver is faulty.
The fans in the comp driver
are faulty.
1. The fans in the comp
driver are faulty.
2. Dirt exists in the air vents
of the fans in the comp
driver.
3. Comp drive heat sink is
dirty & heat ex effect
poor.
4. ECB cavity is
5 Operation and Maintenance
Solution
comp driver.
3. Maintain or replace the
comp.
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. Fill oil to the comp.
2. Clean the condenser fins.
3. Maintain or replace the
outdoor units.
4. Decrease certain amount
of refrigerant.
5. Maintain or replace the
comp.
1. Fill oil to the comp.
2. Clean the condenser fins.
3. Maintain or replace
outdoor fans.
4. Decrease certain amount
of refrigerant.
5. Maintain or replace the
comp.
1. Fill oil to the comp.
2. Maintain or replace the
comp.
3. Maintain or replace the
comp driver.
Check the fans in the comp
driver.
1. Check the fans in the
comp driver.
2. Clean the air vents of the
fans in the comp driver.
3. Clean the heat sink after
power-off.
4. Clean the cavity after
power-off.
5. Replace the drive
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