Samsung AM012KNQDCH/TC - Compressor Starting Error

Troubleshooting
Samsung Electronics 399
4-4-76 Compressor starting error
Outdoor unit display
(INVERTER1 PCB)
(INVERTER2 PCB)
Judgment Method
 Startup, and then if the speed increase is not normally.
 Detected by H/W or S/W.
Cause of problem
 Compressor connection error
 Defective Compressor
 Defective PCB
Power Off and then Restart
Continue
Ye s
Is Hot Gas Bypass Valve startup
the initial power is applied?
Hub Replace PCB.
No
Ye s
Hot Gas Bypass Valve initial
startup does it work?
Replace Hot Gas Bypass Valve.
No
Ye s
Is the resistance
value between different phases of
compressor (U׳V,V׳W,W׳U)
less than 2?
Replace Compressor.
No
Ye s
Is the resistance
between the body of Compressor and
chassis M?
Replace Compressor.
No
Ye s
Does the Compressor
connection wire properly connect to
the compressor?
Check the connection wire.
No
1.
Cause of problem