Samsung DMT300 Series Service Manual page 43

Error type Error mode
The Cycle does None
not start.
No Washing None
Error type Error mode
The cycle does None
not start.
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Checking Method
1) Check the connections for the Door Sensing Switch
: Check the blue wire and the switch connected to the blue wire.
• Normal (Power Key On): 9.5 to 12.5V (when the door is open)
• Normal (Power Key Off): 5.5 to 7.0V (when the door is open)
• Normal : <2V (when the door is closed)
2) Check the operation of the Door Sensing Switch.
(Remove the connector before measuring.)
: Check the blue wire and the switch connected to the blue wire.
• Normal: OPEN (when the door is open)
• Normal: SHORT (when the door is closed)
1) Check whether the nozzle injects water normally.
2) Check the operation of the Heater.
Checking Method
1) Check the connections for the Door Sensing Switch
: Check the blue wire and the switch connected to the blue wire.
• Normal: 4.5 to 5.5V (when the door is open)
• Normal: < 1V (when the door is closed)
New PBA
1) Check the connections for the Door Sensing Switch
: Check the blue wire and the switch connected to the blue wire.
• Normal: 9.5 to 13.0V (when the door is open)
• Normal: < 1V (when the door is closed)
Corrective actions
Reconnect the Door Sensing Switch connectors
•
• Faulty: Replace the Door Sensing Switch.
• Normal: Replace the Main PBA assy.
• See "The nozzle does not inject water".
• See "Heater Error".
Corrective actions
• Reconnect the Door Sensing Switch connector.
4. Troubleshooting
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