40
Installation and Maintenance
Service Manual
3. Compressor desynchronizing malfunction
Main checking points:
If the eletric expansion valve is working normally or it is broken;
If the pressure of the system is too high;
If the radiation of the unit is good;
Flow chart:
Eliminate the malfunction
Eliminate the malfunction
Eliminate the malfunction
Replace the compressor
End
The unit appears desynchronizing
as soon as energizing and starting
The stop duration of the compressor is longer
than 3min?
The wiring of the compressor is
connected properly?
Reconnect the wire properly
The eletric expansion valve is broken?
Replace the eletric
expansion valve
Replace the outdoor mainboard
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
