Samsung DMR57 Training Manual page 52

No Dry Operation Troubleshooting
The fan is no different from testing any other device in the washer. There should be
a drive voltage of 120VAC going to it when energized. However the fan motor itself
can be checked for resistance of the windings which should be ~150 Ohms if
normal. Check the wiring harness and connections. Also in the case of the fan
make sure nothing is blocking it or impeding the fan blades.
Use the service and test procedures to manually turn on this device.
Check the resistance of the Fan Motor coil.
(Remove the connector before measuring.) Normal
measurement ~ 150 Ω
Check the operation of the Fan Motor Relay:
Check the operating voltage between the white
wire of the CN 1 Pin 1 and the sky blue wire of
the CN14 Pin 2.
Normal measurement will be 120VAC (while
operating)
NOTE: The power relay must be good for the fan
to operate
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