Service manual
45
No
Yes
Yes
No
Yes
Yes
No
No
No Yes
13.1.8
Display LED STATUS
P1 Over voltage or too low voltage protection
13.1.9
Display LED STATUS
P2 Compressor top protection against temperature
Off: 115゜C; On: 100゜C
Is connection to connector good?
Is the wires to compressor right?
Check the inverter module, If some component
cracked or damaged?
Is it breakdown between P-N,P-U,P-V;N-W,N-U,N-V
At inverter module
Check compressor Inverter module is defective
Repair connector
Is the power supply right?
Check the outdoor power board
Replace outdoor main PCB.
Yes
Check the voltage between P and N on inverter
module. Is it about 380V?
Test the outdoor power supply board again.
Inverter module damaged, replace it.