39
TROUBLESHOOTING CONTINUED
(6) Start failure malfunction
Main checking points:
Is the stop duration of the compressor is correct
Is the compressor connected properly
Is the compressor broken
Flow chart:
Is the refrigerant charge amount too great;;
Energize and
start the unit
Is the stop duration of the compressor
3 minutes or longer
no
no
no
no
no
no
yes
yes
yes
yes
yes
yes
Is the compressor connect correctly
Eliminate the malfunction
Reconnect the compressor
according to the wiring
diagram
Is the refrigerant charge
amount too great
Reclaim and charge the
refrigerant according to
the Service Manual
Eliminate the malfunction
Eliminate the malfunction
Replace the compressor
End
Replace the outdoor
mainboard
The stop duration of the unit
is not enough, the high and
low pressure of the system
have not equalized, restart
after 3 minutes.