Samsung DMT300 Series Service Manual page 35

Error type Error mode
High 'Normal' +
Temperature 'Delicate' +
Water supply 'Quick' LED
Error
Drain error 'Delicate' LED
Copyright© 1995-2010 SAMSUNG. All rights reserved.
Checking Method
1) Check the hot water connections for the Inlet Valve.
2) Check the operation of the Thermistor.
1) Check whether there is any foreign material in the Drain Hose.
2) Check the operation of the Low Level Sensor.
3) Check the connections for the Drain Pump connector.
4) Check whether the Drain Pump coil is conductive. (Remove the
connector before measuring.)
• Normal: Approx. 25Ω
5) Check the operation of the Drain Pump Relay
: Check the operating voltage between the white wire of the Main PBA
CN101 connector and the amber wire of the CN201 connector.
• Normal: 120V (while operating)
6) Check the operation of the Power Relay.
Corrective actions
Adjust the hot water supply so that the temperate of the supplied
•
water is less than 176˚F (80˚C)
See the "Temperature sensor error".
•
Remove the foreign material from the Drain Hose.
•
See the "Low Level Water Error".
•
• Reconnect the Drain Pump connector.
• Faulty: Replace the Drain Pump.
• Faulty: Replace the Main PBA assy.
• Normal: Replace the Drain Pump.
Remove Retainer.
•
Check voltage
•
See the "Power Relay error".
•
4. Troubleshooting
4-6