Vivax ACP-12CC35AERI, Service Manual

Page: 163 / 177

Troubleshooting
Electrical Control System 159
2.4.4.14. J0 malfunction
7 display
P7 display
High temperature protection of
evaporator
High temperature protection of
evaporator
Whether compressor
operates?
Whether compressor
operates?
Yes
Check whether the outdoor
ambient temperature is higher
than 30
ć
Check whether the outdoor
ambient temperature is higher
than 30
ć
No
Correct the connection
Correct the connection
No
Check the connection
between T2 and PCB.
Check whether T2 and T2B
Is reversed
Che tion
C B
Check the connection
between T2 and PCB.
Check whether T2 and T2B
Is reversed
Check whether the
resistance of T2 is normal
refer to the Appendix ii 1
Check whether the
resistance of T2 is normal
refer to the Appendix 1
Replace the temperature sensor
Replace the temperature sensor
No
Yes
Yes
Stop the unit
Stop the unit
Yes
Check whether the air-outlet is
blocked?
Check whether the air-outlet is
blocked?
Check whether the heat
exchanger and filter are
dirty
˛
Check whether the heat
exchanger and filter are
dirty
˛
Check whether the indoor fan
is running normal?
Check whether the indoor fan
is running normal?
No
Yes
Clean the air-outlet
Clean the air-outlet
Replace the indoor main
PCB
Replace the indoor main
PCB
Clean the heat exchanger and filter
Clean the heat exchanger and filter
Yes
No
Yes
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
please refer to the solution of fan
speed has been out of control
malfunction . Find out the cause and
have it solved.
No
No
J0