Samsung DMR78AHS/XAC Service Manual page 46

4. Troubleshooting
Error type Error mode
Half load error PE
Overflow error oE
4-8
Checking Method
5. Remove the Distributor Motor and check the
operation of the motor.
(Use t8 service inspection mode .)
Normal: The motor rotates normally.
➢
6. Check the position sensing operations when turning
the Micro Switch on and off.
(Use t8 service inspection mode.)
Check the conduction between the maroon
➢
wire and the pink wire.
Micro switch On: Short
➢
Micro switch Off: Open
➢
1. Check the connections for the Overflow Sensor
connector.
2. Check whether the Inlet Valve operates normally.
Use t1 service inspection mode.
➢
3. Check whether water is supplied (even small
amounts) in the intervals when the Inlet Valve is not
operating.
Corrective actions
- Faulty: Replace the Distributor Motor.
- Faulty: Replace the Micro Switch for sensing positions.
- Normal: Replace the valve distributor and CAM switch.
Micro Switch Off
(open)
Micro Switch
push: On (short)
- Reconnect the Overflow Sensor connector.
- See "4E Error".
- Remove foreign material from the Inlet Valve.
- If you cannot remove the foreign material from the Inlet Valve, replace it.