Service Inspection Mode - Samsung DMT300 Series Service Manual

4. Troubleshooting

4.2. Service Inspection Mode

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Press the 'Heavy' + 'Delicate' + 'Power' buttons at the same time for two seconds to enter Service Inspection Mode.
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All LEDs are displayed for the first two seconds and then Software-Ver. It will be indicated Binary Code using 'Wash + Dry + Clean + Child Lock' LED.
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You can change the mode by pressing the Normal button once more. If press the Normal button in any mode, mode will be changed to next mode.
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If 'Heavy + Quick' LED, 'Heavy' LED or 'Heavy + Delicate + Quick' LED error occur, enter the Service Inspection Mode after resolving problem.
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Service Inspection Mode is described in the following table. When you activate this inspection mode, the door must be closed.
Mode Display
No.1 'Quick' LED
No.2 'Delicate' LED
No.3 'Delicate' + 'Quick' LED
No.4 'Heavy' + 'Quick' LED
4-3
Related Parts Symptoms (LED Blinking)
Inlet Valve Water Supply Error
Flow Meter Low Level Water Error
Low Level Sensor 'Normal' + 'Heavy' + 'Delicate' LED
Circulation Motor A nozzle does not inject water.
Circulation Motor Heater Error
Heater
Thermistor
Fan Motor The Fan Motor does not work.
Dispensor
Note
If Door is open, 'Delicate' + 'Quick' LED will blink.
Water is supplying after low level S/W is detected. If low level S/W is high,
Draining at first.
If water is not supplied, Water Supply Error ('Quick' LED) will blink.
When water level is low after water is supplied, Low Level Water Error
('Normal' + 'Heavy' + 'Quick' LED) will blink.
When Turbidity problem is detected after water is supplied, 'Normal' +
'Heavy' + 'Delicate' LED will blink.
If all functions in this mode are completed, 'Wash' LED will blink.
If Low Level S/W is detected before Circulation Motor is operating, 'Sanitize'
LED will blink.
If Low Level S/W is detected before Circulation Motor is operating, 'Sanitize'
LED will blink.
Circulation Motor and Heater will be operated.
When the temperature is 60˚C or above, the heater is turned off and 'Wash'
LED will blink.
If Heater or Thermistor have problems, the Heater Error ('Heavy' + Delicate'
LED) will blink.
Dispenser will operate during 2 minutes and 10 seconds only one time.
Operate Vent Motor and check whether Rinse aid is filled.
If there is not rinse in Dispenser, Rinse Refilled light is ON.
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