Samsung AR18CSFCMWKN - 4-6-5 Compressor startup error, Compressor lock error, Compressor rotation error

Troubleshooting
4-48 Samsung Electronics
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4-6-5 Compressor startup error, Compressor lock error, Compressor rotation error
1. Check items
 
 
 
Yes
Turn off the power and restart the unit.
Service end.
No
Is there an error?
Yes
Replace the compressor.
Checking Comp Resistance (Normal Value)
No
Is the resistance valve
between the phases (U↔V,V↔W,W↔U)
below normal valve?
Yes
Replace the compressor.
No
Is the resistance value
between the compressor boday and the chassis
in the range of Mega
Ω
.
Yes
Check the connection wire.
No
Is the compressor
connection wire connected to the
compressor correctly?
Replace the outdoor unit Main PCB.
U-V V-W W-U
AJ020BXJ2CH
AJ024BXJ3CH
  
AJ***CXS*CH
AJ036BXJ4CH
AJ048BXJ5CH
  