Samsung DW80M9 Series Service Manual page 51

Check type Check code
1. Check the connections for the Motor vane and Sensor vane connectors.
2. Check whether the coil in Motor vane is conductive.
3. Check the position sensing operations when moving the Sensor vane on
Motor vane
7C
check
4. Adjust Motion Assy and Find the faulty.
5. Check whether Motor vane is operating normally.
6. Check the Power Relay.
Checking method
Check the resistance between the Red and Black wire(CCW)
Check the resistance between the White and Black wire(CW).
: Remove the connectors before measuring.
► Normal: Approx. 1.625 ~ 1.796kΩ
and off.(Use n5 Service test mode.) Check the conduction between the
Brown wire and the Black wire.
► Sensor On: 0V
► Sensor Off: 5V
- Check the Motor vane operation
► Normal: 110 ~ 120V
- Check the operation of Motor vane Relay.
- CCW: Check the operating voltage between the 8pin(Red) wire of the
Main PBA CN401 connector and the White wire of the Main PBA CN101
connector CW: Check the operating voltage between the 7pin(White)
wire of the Main PBA CN401 connector and the White wire of the Main
PBA CN101 connector.
► Normal: 110 ~ 120V (while operating)
Corrective actions
- Reconnect the Distributor Motor and Micro Switch connectors.
- Faulty: Replace the Motor vane.
- Faulty: Replace the Sensor vane for sensing positions.
- Normal: Replace the Motor vane and Sensor vane.
- Faulty: Replace Motion Assy.
- Faulty: Replace the Main PBA Assy.
- See the "Power Relay check code".
Troubleshooting_49