Vivax ACP-12CT35AERI Service Manual page 159

2.4.4.10. F0 malfunction
F0
P3 display
3 display
Current protection of compressor
Current protection of compressor
The protection occurred in
The protection occurred in
standby
standby
No
Check whether the power
Check whether the power
voltage is normal.
voltage is normal.
Yes
Measure whether outdoor
Measure whether outdoor
terminal voltage is normal
terminal voltage is normal
Yes
Measure whether the voltage
Measure whether the voltage
between L and N is normal
between L and N is normal
Yes
Measure whether input voltage
Measure whether input voltage
of bridge rectifier is normal
of bridge rectifier is normal
Yes
Measure whether the
Measure whether the
current is normal
current is normal
No
Measure whether the voltage
Measure whether the voltage
between P and N is normal
between P and N is normal
refer to the Appendix 3
refer to the Appendix i i 3
Yes
Check whether the outdoor
Check whether the outdoor
ambient temperature is
ambient temperature is
higher than 50
higher than 50
No
Check if the outdoor unit
heck if the outdoor unit
ventilation is good
ventilation is good
Yes
Check if the outdoor fan
Check if the outdoor fan
runs properly
runs properly
Yes
Check whether the heat
Check whether the heat
exchanger is dirty
exchanger is dirty
No
Replace outdoor main
Replace outdoor main
board
board
No
Check whether system pressure
Check whether system pressure
is too high
is too high
No
Check whether the refrigerant
Check whether the refrigerant
system is ok
system is ok
Electrical Control System
Restart the unit when the power
Restart the unit when the power
No
Check the wiring of
Check the wiring of
No power wires well or
power wires well or
correctly
correctly
Check the wiring of
Check the wiring of
No L and N well or
L and N well or
correctly
correctly
Check the wiring of
Check the wiring of
No bridge rectifier well
bridge rectifier well
or correctly
or correctly
Yes Replace the outdoor main PCB
Replace the outdoor main PCB
No
Yes Stop the unit
top the unit
No
Make the outdoor unit ventilate well
Make the outdoor unit ventilate well
please refer to the solution of fan
please refer to the solution of fan
speed has been out of control
speed has been out of control
No
malfunction . Find out the cause and
malfunction . Find out the cause and
have it solved.
have it solved.
Yes Clean the heat exchanger
Clean the heat exchanger
Recycle the over charged
Recycle the over charged
Yes
refrigerant
refrigerant
supply gets normal
supply gets normal
Reconnect it well
Reconnect it well
Reconnect it well
Reconnect it well
Reconnect it well
econnect it well
Check whether
Check whether C
bridge rectifier is
bridge rectifier is
normal
normal
Yes
Replace the PFC module(If has)
Replace the PFC module(If has)
No
Check the wiring of
Check the wiring of
reactor or inductance
reactor or inductance
Yes
Check whether reactor
C Check whether reactor
or inductance is normal
o or inductance is normal
Yes
Troubleshooting
Yes
Replace the bridge
Replace the bridge
No
rectifier
rectifier
Reconnect the
Reconnect the
No
wiring
wiring
Replace reactor or
Replace reactor or
No
inductance
inductance
155