[64] CT current too high
Check if wire between
connecting board and module is
connected normally
Check if CT wire is conductive
If temperature on top of fixed
frequency compressor is too
high
If there is air into the system
If there is clogged, motor is bad
Replace compressor
Y
Y
Y
N
N
N
Re-connect
N
Replace wire
N
Y
If AC
contactor work
Y
Recharge refrigerant
Y
Fix the system
86
If normal after
replacing CT detector
N
Replace PCB