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Samsung DMT300 Series Training Manual

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Dishwasher
DMT300 series training
Jan 2010
Kitchen Solution Business Team

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Table of Contents
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  Summary of Contents for Samsung DMT300 Series

  • Page 1 Dishwasher DMT300 series training Jan 2010 Kitchen Solution Business Team...
  • Page 2 Contents Agenda General Specification Features and functions Specification Hardware Wiring diagram Schematic III. Disassembly Trouble Shooting Error message Trouble shooting flow Error Trouble shooting Reference...
  • Page 3 General Specification  Capacity: 14 place settings  Control panel design Main Features - Front type + Button operation.  Dimension (W x D x H) : 23-7/8 x 24-3/4 x 33-7/8 inch (605 x 627 x 860 mm ) ...
  • Page 4 Features Dishwasher Features...
  • Page 5 Functions Control Panel...
  • Page 6 Specification Product Main Specification MODEL name DMT300RFS, DMT300RFB, DMT300RFW Power supply Single phase AC 110V / 60Hz Water pressure 140 ~ 830 kPa (20 ~ 120 psi) Wash method Rotating nozzle spray type Dry method Air vent dry system Standard cycle: 1.03 KWh ± 10% Power consumption Circulation Motor :185W±15% or below Heater : 1100W±10% or below...
  • Page 7 Specification DMT300RFS DMR57LFS(Basic) Capacity 14 place settings 14 place settings Display None Graphic LED Control Type Tact Button Touch Sensor Inlay Normal, Heavy, Normal, Heavy, Delicate, Quick Delicate, Rinse Washing Program Sanitize Delay Start, Sanitize Inlet Water Exclusively for hot water Exclusively for hot water Basket Color Gray Color (Nylon Coating)
  • Page 8 Wiring Diagram...
  • Page 9 Schematic diagram...
  • Page 10 Schematic...
  • Page 11 Schematic...
  • Page 12 Schematic Sub PCB...
  • Page 13 Disassembly and Reassembly - preparation Preparation for parts replacement 1. Take out the residual water inside the product. (Drain the water by operating the drain pump) 2. Close the water supply valve. 3. Turn off the power. You must turn off the circuit breaker connected to the product. 4.
  • Page 14 Disassembly and Reassembly - 1. THERMISTOR 1) Lay the product down so that you can see the Base, and unscrew the 2 screws fixating the base and the shutter. 2) Separate the terminal of leakage sensor terminal of the shutter. 3) After checking the thermistor location, unscrew 2 screws fixating the case sump.
  • Page 15 Disassembly and Reassembly - 2. HEATER (1/2) 1) Open the door and separate the upper and lower baskets from the dish washer. 2) Separate the lower nozzle. 3) Separate the duct nozzle. 4) Disassemble the sump ass‟y and separate the cover sump &...
  • Page 16 Disassembly and Reassembly - 2. HEATER (2/2) 5) Lay the product down, and unscrew the 2 screws fixating the base and the shutter. Separate the terminal of leakage sensor terminal of the shutter. 6) After disassembling the terminal inserted to the heater, turn the holder heater in CCW direction to disassemble it.
  • Page 17 Disassembly and Reassembly - 3. PUMP DRAIN 1) Lay the product down, and unscrew the 2 screws fixating the base and the shutter. Separate the terminal of leakage sensor terminal of the shutter. 2) Separate the terminals (2 units) of the pump drain.
  • Page 18 Disassembly and Reassembly - 4. WATER VALVE 1) Disassemble the front lower cover. Check before disassembly. Lock the water supply valve connected to the water supply line before the disassembly. 2) Disassemble the front lower frame . 3) After separating the water supply hose connected to the water supply valve, disassemble the water supply valve.
  • Page 19 Disassembly and Reassembly - 5. PUMP CIRCULATION (1/2) 1) Open the door and pull out the upper and lower Baskets. 2) Separate the top, bottom and duct nozzle. 3) Disassemble the sump ass‟y and separate the cover sump & cover heater. 4) Disassemble the circulation impeller and separate the case scroll.
  • Page 20 Disassembly and Reassembly - 5. PUMP CIRCULATION (2/2) 6) After laying the product down and disassembling the shutter, separate the leakage sensor terminal assembled on the shutter. 7) Separate the terminal of circulation motor. 8) Disassemble the circulation motor and separate it from the sump ass‟y.
  • Page 21 Disassembly and Reassembly - 6. Panel Control part (1/2) 1) Open the door and unscrew the screws of front frame, front tub and panel control. (12 screws) [Caution] - Always set a mat on the floor so that the front side of the frame does not get damaged during the work.
  • Page 22 Disassembly and Reassembly - 6. Panel Control part (2/2) * PCB ass‟y disassembly 4) Disassemble the PCB ass‟y.(4 screws) Separate all the terminals of PCB. [Caution] - When separating the terminal, always turn the power off before working. * PCB tact ass‟y disassembly 5) Disassemble the PCB tact ass‟y.(3 screws) [Caution] - When reassemble the PCB tact ass‟y, ensure...
  • Page 23 Disassembly and Reassembly - 7. DISPENSER 1) Open the door and unscrew the screws of front frame and front tub.(12 screws) [Caution] - When you unscrew all the screws, the front tub can close up injuring the worker. 2) After separating the fan motor terminal and thermal actuator terminal, put the front frame ass‟y down on the floor.
  • Page 24 Disassembly and Reassembly - 8. FAN VENT ASSY (1/2) 1) Open the door and unscrew the screws of front frame and front tub.(12 screws) [Caution] - When you unscrew all the screws, the front tub can close up injuring the worker. 2) After separating the fan motor terminal and thermal actuator terminal, put the front frame ass‟y down on the floor.
  • Page 25 Disassembly and Reassembly - 8. ASSY FAN VENT(2/2) 7) Hold and remove the case vent ass‟y. 8) Remove the 2 screws holding the fan motor from the case vent ass‟y. And carefully pull out the fan motor. 9) Unscrew the screws and disassemble of case vent.(3 screws) 10) Separate the case vent U and case vent L.
  • Page 26 Disassembly and Reassembly - 9. Case Sensor (1/2) 1) Unscrew the screws (2 screws) connecting the frame L. - When you separate the frame L, you can check the case sensor, and replace the micro S/W on the cover sensor part. 2) Separate the drain hose from the bracket hose drain.
  • Page 27 Disassembly and Reassembly - 9. Case Sensor (2/2) 4) Separate the case sensor from the case brake. [Caution] - Be careful not to break the hook. 5) Separate the case sensor and cover sensor. [Caution] - Be careful not to break the hook. 6) Separate the pole sensor (2 units) from the cover sensor.
  • Page 28 Disassembly and Reassembly - 10. Distributor 1) Place the dishwasher on its back so that you can see the base. Remove the two (2) screws that hold the base and the shutter in place. 2) Remove the leakage sensor connector (white) inside the shutter.
  • Page 29 Disassembly and Reassembly - 11. Relay 1) Unscrew the 2 screws connecting the frame R. 2) When you separate the frame R, you can check the fuse & relay. 3) Separate the terminal of relay. Unscrew the screws of relay using short-body screwdriver.
  • Page 30 Trouble Shooting Error Codes CODE SYMBOL Meaning Occurring condition Expected causes Temperature When 0.2V or below, or 4.5V or above is maintained for over 3 Thermistor terminal not connected Sensor error seconds Possible defect : Thermistor , Main PBA Heater error When the temperature change is 4℃...
  • Page 31 Troubleshooting and Adjustment – Resolution by symptom 1. When the power does not come on The power does not come on. Is the connected condition of the power cable good? Connect the power cable firmly. Check the used voltage. (Check Is the used voltage normal? AC 120V) Is the wire connection of the power supply of main PBA normal?
  • Page 32 Troubleshooting and Adjustment – Resolution by symptom 2. When the drain is not working The drain is not working. (5E) Clean the alien particles inside Is the drain hose clogged by alien particles? the drain hose. Is the Low Level Sensor working Low Level Sensor is defective.
  • Page 33 Troubleshooting and Adjustment – Resolution by symptom 3. When water supply is not working Water supply is not working.(4E) Connect the water supply Do you hear a “Zee” valve Is the water faucet firmly. sound in water supply Open the water faucet. open? condition? Lock the water faucet and...
  • Page 34 Fan Motor coil? replace it. operating? About 150Ω replace it Check point 1. Samsung dishwasher is using Main PBA ASS’Y is defective. condensing dry technology. Please replace it. It could be worse than heated dry method. 2. Refer the service manual page.4-13.
  • Page 35 Trouble Shooting SVC Test Mode - Press the „Heavy‟ + „Delicate‟ + „Power‟ buttons at the same time for two seconds to enter Service Inspection Mode. - 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. - You can change the mode by pressing the Normal button once more.
  • Page 36 Trouble Shooting Program chart...
  • Page 37 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Quick‟ LED Water supply 1. Check whether the faucet is open. - Open the faucet. Error 2. Check whether the water supply has been cut off. - Close the faucet and turn off the power. Wait until the water supply resumes. 3.
  • Page 38 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Normal‟ + High 1. Check the hot water connections for the Inlet Valve. - Adjust the hot water supply so that the temperate of the supplied water is less „Delicate‟ + than 176˚F (80˚C) Temperature „Quick‟...
  • Page 39 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Normal‟ + Low Level 1. Check the connections for the Low Level Sensor - Reconnect the Low Level Sensor connector. „Heavy‟ + Water Error connectors. „Quick‟ LED - Faulty: Replace the Low Level Sensor, Remove foreign - Faulty: Replace the Low Level Sensor, Remove foreign material from the material from the floater floater...
  • Page 40 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Heavy‟ + Heater Error 1. Check the connections of the Heater connectors. - Reconnect the Heater connectors. „Delicate‟ LED 2. Check the resistance between both ends of the Heater. - Faulty: Replace the Heater. : Check the resistance between both ends of the Heater directly, or check the resistance between the red wire of the Heater Relay...
  • Page 41 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Normal‟ + - See the “Thermistor error”. High 1. Check the hot water connections for the Inlet Valve. “Quick‟ LED Temperature Heating Error - See the “Heater Error”. 2. Check the operation of the Thermistor. „Heavy‟...
  • Page 42 Trouble Shooting Error Type Error Mode Checking Method Corrective actions „Heavy‟ + Thermistor Error 1. Check the connections for the Thermistor - Reconnect the Thermistor connector. „Delicate‟ + connector. „Quick‟ LED 2. Check whether the Thermistor is operating normally. - Faulty: Replace the Thermistor. - Measure the voltage between both ends of the - Normal: Replace the Main PBA assy.
  • Page 43 Trouble Shooting Error Type Error Mode Checking Method Corrective actions Power Error None 1. Check the connections for the power plug. - Reconnect the power plug. 2. Check the voltage of the power outlet. - Connect to a 120V power source. ➢...
  • Page 44 Trouble Shooting Error Type Error Mode Checking Method Corrective actions The nozzle does None 1. Check the connections for the Circulation Motor connector. - Reconnect the Circulation Motor connector. not inject water. 2. Check the connections for the Startup Condenser connector -Reconnect the Startup Condenser connector of the Circulation Motor.
  • Page 45 Trouble Shooting Error Type Error Mode Checking Method Corrective actions The Cycle does None 1. Check the connections for the Door Sensing Switch - Reconnect the Door Sensing Switch connectors not start. : Check the blue wire and the switch connected to the blue wire.
  • Page 46 Trouble Shooting Error Type Error Mode Checking Method Corrective actions Power Relay None 1. Check the connections for the Power Relay connector. - Reconnect the Power Relay. Error : Start the cycle by pressing the Power key. Then measure the operating voltage between the black wires of the Heater Relay, and the operating voltage between the yellow and amber wires of the Power Relay.
  • Page 47 Trouble Shooting Error Type Error Mode Checking Method Corrective actions Detergent is not None 1. Check whether detergent is inserted into the dispenser. - Check whether there is detergent in the Dispenser. dispensed. 2. Check the connections for the Dispenser connector. - Reconnect the Dispenser connector.
  • Page 48 Trouble Shooting Error Type Error Mode Checking Method Corrective actions Dry is not None 1. Check whether Rinse Refill LED light or not. - If Rinse Refill LED light, refill rinse in Dispenser. satisfied. 2. Check the wire connections for the Fan Motor. - Reconnect the Fan Motor connectors.
  • Page 49 Trouble Shooting Error Type Error Mode Checking Method Corrective actions LED or Input None 1. Check the connections for the Sub PBA connector - Reconnect the Sub PBA connectors.. Key Fail 2. Check the LED and Input Key - Faulty : Replace the Sub PBA. 1) Push „Normal‟...
  • Page 50 Reference Checkpoints after service request 1 Check the safety device 5. Remove foreign material Check the operation of the door lock switch. Check whether any foreign material such as soil, Make sure that it is locked while the dishwasher wire scraps and screws are in the dishwasher. is running and that it is unlocked when the (Check whether any foreign material is entering dishwasher stops.
  • Page 51 Model Number Naming Rules...
  • Page 52 SAMSUNG Thanks...

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