Huawei NetCol5000-A035 User Manual page 186

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width)
Al
ar
m
ID
a0
56
a0
57
Issue 17 (2020-10-22)
Alar Alar Defau
m m lt
Seve Value
rity
Disch Majo N/A
arge r
press
ure
sens
or
fault
Com Majo 4.25
p r MPa
disch
arge
HP
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impac Possible Cause
t
The 1. The cables to the
alarm press sensor are
is loose or
genera damaged.
ted.
2. The press sensor
is faulty.
The 1. The power
alarm supply to the
is outdoor unit is
genera lost, or phase is
ted, open or error.
and
2. The on/off signal
the
cables of the
compr
outdoor unit are
essor
disconnected.
shuts
3. The condenser
down.
fins are blocked.
4. The outdoor unit
or unit driver is
damaged.
5. The press
displayed is
different from
the actual press.
6. The solenoid
valve is faulty.
7. The refrigerant is
overfilled.
Solution
1. Check the
cables to the
press sensor.
2. Replace the
press sensor.
1. Check the
power supply of
the outdoor
unit.
2. Check the
on/off signal
cables of the
outdoor unit.
3. Clean the
condenser fins.
4. Maintain or
replace the
outdoor unit or
unit driver.
5. Calibrate or
replace the
press sensor.
6. Maintain or
replace the
solenoid coil or
the solenoid
valve.
7. Decrease
certain amount
of refrigerant.
176