Compressor Startup Error, Compressor Lock Error, Compressor Rotation Error - Samsung AR07CSDAFWKN Service Manual

Troubleshooting

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

1. Check items
1) Are the power supply and compressor connecting wires connected correctly?
2) Is the inter-phase resistance of the compressor normal?
2. Check procedure
Turn off the power and restart the unit.
Is there an error?
Is the resistance valve
between the phases (U↔V,V↔W,W↔U)
below normal valve?
Is the resistance value
between the compressor boday and the chassis
in the range of Mega
Is the compressor
connection wire connected to the
compressor correctly?
Replace the outdoor unit Main PCB.
4-48
Yes
Yes
.
Ω
Yes
Yes
No
No
Replace the compressor.
Checking Comp Resistance (Normal Value)
AJ020BXJ2CH
0.70~0.80Ω 0.70~0.80Ω 0.70~0.80Ω
AJ024BXJ3CH
AJ***CXS*CH
AJ036BXJ4CH 0.60~0.70Ω 0.60~0.70Ω 0.60~0.70Ω
AJ048BXJ5CH
No
Replace the compressor.
No
Check the connection wire.
Service end.
U-V V-W W-U
Samsung Electronics