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Samsung DMR57 Training Manual
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Samsung DMR57 Training Manual

Samsung DMR57 Training Manual

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Download this manual See also: User Manual, Installation Manual
2008 Dishwasher
Training Manual
DMR77
DMR57
This training is composed of 5 modules covering the 2008 Samsung Dishwasher
models DMR57 and DMR77.
You may exit and re-enter the training as needed in between modules. When you
re-enter the training, you will return where you stopped. You MAY NOT however
exit the training in the middle of a module. You will be re-started at the beginning of
the last saved module. The "SAVE" button at the bottom of the screen records your
progress. If you want certification, you must successfully complete the 2008
Dishwasher Certification exam. To access the 2008 Dishwasher Certification exam,
return to your list of assessments and choose that exam.
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Summary of Contents for Samsung DMR57

  • Page 1 Training Manual DMR77 DMR57 This training is composed of 5 modules covering the 2008 Samsung Dishwasher models DMR57 and DMR77. You may exit and re-enter the training as needed in between modules. When you re-enter the training, you will return where you stopped. You MAY NOT however exit the training in the middle of a module.
  • Page 2 Total Kitchen Design...
  • Page 3 Model Number Nomenclature Buyer Code For 2008 there are two styles of dishwasher, a sleek front or traditional front design. The units are offered in three different color choices...
  • Page 4 Washing dishes can be noisy, especially in the evening or when watching TV. Most of the noise is from the motor on the bottom and the water spraying system. Samsung employs two technologies to reduce the sound. The water pump is tightly isolated and the door uses a 6 layer insulation system.
  • Page 5 Hidden Dryer Element Problem - Exposed heating elements at the bottom of the tub can directly contact plastics, melting them. Also, potential burn hazard picking up small items right a f t e r t h e c y c l e i s f i n i s h e d . Solution - The heating element is hidden below the all-stainless tub.
  • Page 6 Some dishwashers leave heavy residue from dishes in a "catch", which must be manually cleaned. Samsung uses a hard food disposer with a triple filtration system. This is connected to a built in garbage disposal. This reduces the residue that...
  • Page 7 Loading Flexibility Problem - Afraid to wash delicate items like wine glasses? Can't fit those new larger 14" plates under the top rack? Solution - Tilted Rack With tilted rack system, more space is provided to give you infinite freedom to load extra, even odd-sized items.
  • Page 8 Leakage Detector A slow leak around your dishwasher can damage your floor or cabinets well before it is noticed. Samsung has includes a leakage detector under the water reservoir that shuts off the water supply when a leak is detected.

  • Page 9: Wash Arms

    3 Wash Arms Problem - Not getting good washing performance in all rack positions? Solution - Samsung uses 3 wash arms, top (1), middle (2), and bottom (3). How it Works - Tilted Nozzle System Our main water spraying arm in the middle is tilted.
  • Page 10 Condensed Drying The fan driven condensation system captures the latent heat of the wash heater to promote faster drying. Another benefit of this system is the removal of steam vents which might burn small children.
  • Page 11 Convenient Auto Drying...

  • Page 12: Product Specifications

    Main - DMR77 : Hidden type Features - DMR57 : Front type Dimension (W x D x H) : 23.8 x 24.7 x 33.9 inch Both models use a unique tub design that uses less water than some other models...
  • Page 13 Product Comparison Specification DMR77LHS DMR57LFS Capacity 14 place settings 14 place settings Display Graphic LED Graphic LED Control Type Touch Sensor Touch Sensor Control height 5.1 inches 5.1 Inches Front Display PC 3.5t Normal, Heavy, Delicate, Rinse, Normal, Heavy, Quick, Smart Auto Delicate, Rinse Washing Program Delay Start, Sanitize, Half Load...
  • Page 14 Delay Start / Sanitize Operation ● Maximum Delay Time 24 Hours ● Each button press postpones the start by 1 hour ● Press Power to cancel ● Enables High temperature cycle ● At 3th Rinse step, the water temperature is increased to a maximum temperature of 162℉. When [Sanitize] is not selected, the maximum temperature reaches 140 ℉...

  • Page 15: Unique Functions

    Unique Functions Half Load ● Selecting this option runs the upper spray arm only, Select this option to wash a small load of dishes. Child Lock ● [Child Lock] is selected by pressing the [Rinse] Button and [Quick] Button simultaneously for 3 seconds. You must press f o r 3 s e c o n d s a g a i n t o c a n c e l t h e s e l e c t i o n .
  • Page 16 Cycle Explanation Use this cycle for regular dinner dishes. Normal Use this cycle for hard-to-clean, heavily soiled dishes, pots, pans, and dishes with Heavy heavy oil. Use this cycle for normally soiled dishes or fragile items such as glasses. Delicate Use this cycle for pre-cleaned dishes or glasses.
  • Page 17 Cycle Selection Time Chart Program Pre- Pre- Pre- Main Last Total Drain Rinse 1 Rinse 2 wash 1 wash 2 wash 3 wash Rinse Time Normal 0:45 16:30 (16:30) 32:30 7:30 (7:30) 32:30 110~134 Heavy 0:45 17:30 17:30 17:30 46:30 7:30 7:30 46:30...
  • Page 18 Cycle Time Chart MICOM cycle Program chart [ time , temperature ] (min) Program Pre- Pre- Pre- Main Total Drain Rinse 1 Rinse 2 Rinse 3 wash 1 wash 2 wash 3 wash Time Normal 0:45 16:30 (16:30) 32:30 7:30 (7:30) 32:30 110~134...
  • Page 19 Cycle Operation Description Cycle name Explanation Comments Pre- wash Tub Fills with water Water Heating After the water supply is completed, the heater may turn on to heat the water depending on the selected cycle. Detergent 3 minutes after the fill operation is complete, the detergent dispenser opens Dispensing Main wash...
  • Page 20 Water Supply Operation Water supply cycle A. Water supply function in the cycle starts 3 seconds after the drain function is completed. B. When the there is no pulse input from the water supply valve after the water supply starts, the ERROR ("4E") will be displayed.
  • Page 21 Drain Cycle Operation A. Drain cycle operates when the operation button is initially entered or 1 second after the wash and rinse cycle are completed. B. Drain function is executed as follows. Remove remaining water Check float S/W after 45 seconds from the power is (Initially press operation button) turned on Check float S/W after 70 seconds from the power is...

  • Page 22: Operating Principles

    Operating Principles Operating principle and order of dish washer Inner Space cycle Pre wash Dishes Main wash Front Rinse Dishes Water Disposer Heater Grinds the leftover food to High temperature water make the particles smaller in size The process starts with the pre-wash cycle filling the tub with water. Step 2 heats the water, Step 3 triggers the detergent dispenser, in Step 4 the heated water is distributed throughout the tub.
  • Page 23 Typical Drain and Circulation Errors t2 - Circulation Motor Error - Nozzle does not spray 1. Press the Delay Start key to start or stop the pump. 2. If a low water level is detected, water is supplied again and the operation continues.
  • Page 24 No Drain Troubleshooting...
  • Page 25 Water Flow Path Inlet Valve The inlet valve is opened 3 seconds after the initial start time or 3 seconds after the drain function is completed for rinse operation. The amount of water supplied is about 1.1 ~ 1.8 gallons. The amount of water supplied depends on the variances of flow meter, water pressure and inlet valve etc.
  • Page 26 Test Program Modes PCB TEST MODE 1) Press [Delicate] + [Rinse] + [Power] simultaneously to access this mode 2) All LED’s will illuminate then the EEPROM is tested - If there is no issue with EEPROM, “EPA” will be displayed. If there is any issue, “Epn” will be displayed. 3) Press the “Normal"...
  • Page 27 Test Modes Part 1 Mode Related parts Possible Activate Mode Test Notes Error Codes Inlet valve, Flow 4E error If you press the Delay Start key, water is Water fill in approximately 70 Meter, Low 9E error drained for 45 seconds and then the water seconds average water pressure, Level Sensor supply starts.
  • Page 28 Test Modes Part 2 Mode Related Possible Activate Mode Test Notes parts Error Codes Drain Pump, 5E error 1. Press the Delay Start key to start the 2 pump out is approximately 30 Low Level parts. seconds Sensor 2. “t5” starts blinking on the display while water is being drained.
  • Page 29 Line Test Mode LINE TEST MODE TEST mode entry selection button : Heavy + Delicate + Power Button → After all-LED indication about 2 second, “Micom-Ver.” and “Software-Ver.” will be indicated. Press the “Normal“ button to test the cycle in order Mode Display Note...
  • Page 30 Service Test Modes 1) Entry method: Press the “Delay Start+Normal+Power" Key simultaneously for 3 seconds. 2) Display: “t1” is displayed 3 seconds after everything is displayed. 3) It switches to t1->t2->t3->t4->t5->t6->t7->t8 mode depending on the Normal Key entry - When operating each mode, the door must be kept closed. - If an “oE”, “LE”...
  • Page 31 Peripheral Device Troubleshooting Temp. (ºF) Temp. (ºC) Resistance (k Ω) 125.780 98.323 77.454 61.465 49.120 39.517 31.996 26.065 21.385 17.599 14.579 12.140 10.159 8.542...
  • Page 32 Peripheral Device Troubleshooting Part 2...

  • Page 33: Disassembly Preparation

    Disassembly Preparation Preparation for parts replacement 1. Take out the residual water inside the product. (Drain the water by operating the drain pump if possible) 2. Close the water supply valve. 3. Turn off the power. You must turn off the circuit breaker connected to the product.

  • Page 34: Thermistor Replacement

    Thermistor Replacement 1) Lay the product down so that you can see the BASE, and unscrew the 2 screws securing 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 securing the CASE SUMP.
  • Page 35 Thermistor Temperature / Voltage Chart Temp. (ºF) Temp. (ºC) Resistance (k Ω) 125.780 98.323 77.454 61.465 49.120 39.517 31.996 26.065 21.385 17.599 14.579 12.140 10.159 8.542 This chart can be used to accurately measure the thermistor resistance according to the ambient temperature surrounding the device. These measurements must match this chart with a 5% tolerance for the thermistor to be considered good.
  • Page 36 Heater Replacement part 1 1) Open the door and separate the upper and lower rack from the dish washer. 2) Separate the nozzle bottom. 3) Separate the nozzle duct. 4) Disassemble the Sump assembly and separate the Cover Sump & cover Heater. Heater replacement starts with 1.
  • Page 37 Heater Replacement Part 2 5) Lay the product down, and unscrew the 2 screws securing 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 38 Drain Pump Disassembly 1) Lay the product down, and unscrew the 2 screws securing 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. 3) Turn the PUMP DRAIN in CCW direction to pull it out.
  • Page 39 Drain Pump Operation The Drain pump operates when the operation button is initially entered or one second after the wash and rinse cycles are completed. Normally the drain pump operates for 30 to 45 seconds. 70 seconds after the cycle ends the float switch is monitored.
  • Page 40 No Drain Troubleshooting - Error 5E A good drain motor should measure ~ 25Ω Check to make sure the drain hose is not clogged and that the low level sensor is good. Check the operation of the Drain Pump Relay: Check the operating voltage between the White wire of CN1 Pin 1 on the Main board and the Orange wire of CN14 Pin 8.
  • Page 41 Water Valve Disassembly 1) Disassemble the front lower Cover. Check before disassembly that the water supply valve connected to the water supply line is turned off. 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 42 Water Valve error Codes Error Code ("oE”) is displayed when the case sensor is triggered. (oE) is usually caused by a defective fill valve. Error Code 4E is displayed if there is no pulse input from the water supply valve after the water supply starts.
  • Page 43 No Water Fill Troubleshooting - Error 4E Measure the coil in the Inlet Valve. Remove the connector before measuring. A good valve winding measures ~ 1200 Ω Check whether the Inlet Valve is operating normally. Check the operation of the Inlet Valve by measuring 120VAC across it while it is operating.
  • Page 44 Circulation Pump Disassembly Part 1 Open the door and pull out the Upper and Lower Basket. Separate the Top, Bottom and Duct Nozzle. Disassemble the Sump assembly and separate the Sump & Heater covers. Disassemble the Circulation Impeller and separate the Case Scroll.

  • Page 45: Sump Assembly

    Circulation Pump Disassembly Part 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 assembly. ※...
  • Page 46 Circulation Pump Error Code “t2” is displayed if there is a circulation pump error. This can be a low water condition or a problem with the pump. Verify the drive signal is reaching the pump prior to replacing the circulation pump. “t2”...
  • Page 47 Control Panel Disassembly Part 1 1) Open the door and unscrew the Front Frame, Front Tub and Panel Control. (12 screws) [Caution] - Always set a mat on the floor so that the front of the Frame does not get damaged during the work.
  • Page 48 Control Panel Disassembly Part 2 * Display LED removal Disassemble the Display LED by removing the 2 screws that hold it and disconnect the wiring harness. [Caution] Be careful not to reuse the O-ring seal when reassembling the unit. * PCB removal 5) Remove the 4 screws that hold the PCB assembly in place and disconnect the wiring harness of PCB.
  • Page 49 Dispenser Replacement 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 may spring closed, be careful. After separating the Fan Motor terminal, put the Front Frame assembly down on the floor.
  • Page 50 Fan Vent Disassembly Part 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. After separating the Fan Motor terminal, put the Front Frame assembly down on the floor.
  • Page 51 Fan Vent Disassembly Part 2 5) Remove the 2 screws holding the cover fan in place. 6) Hold and remove both the case vent ASSY and the duct condenser ASSY. [Caution] - Be careful while removing them as the duct condenser is touching the bracket door link.
  • Page 52 No Dry Operation Troubleshooting Check the resistance of the Fan Motor coil. (Remove the connector before measuring.) Normal measurement ~ 150 Ω Check the operation of the Fan Motor Relay: Check the operating voltage between the white wire of the CN 1 Pin 1 and the sky blue wire of the CN14 Pin 2.
  • Page 53 Case Sensor Disassembly Part 1 Unscrew the screws (2 Screws) connecting the Frame - When you separate the Frame L, you can check the Case Sensor, and replace the Micro S/W on the Cover Sensor part. Separate the Drain Hose from the Bracket Hose Drain. Separate the Case Brake and Cover Brake.
  • Page 54 Case Sensor Disassembly Part 2 Separate the Case Sensor from the Case Brake. [Caution] - Be careful not to break the Hook. Separate the Case Sensor and Cover Sensor. [Caution] - Be careful not to break the Hook. Separate the Pole Sensor (2 units) from the Cover Sensor.
  • Page 55 Distributor Disassembly 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. 3) Remove the two (2) distributor motor connectors.
  • Page 56 Relay and Fuse Replacement Unscrew the screws (2 Screws) connecting the Frame R. When you separate the Frame R, you can check the Fuse & Relay. Pull out Fuse case that be fixed on hook of Base. Open the Fuse case. Check the fuse.
  • Page 57 No Power Troubleshooting 1. When the power does not come on The dishwasher is dead. Is the voltage between Pin # 6 and 7 of CN7 connector of main PBA 4.5VDC or above The main PBA is defective. Please replace it. and the voltage between Pin # 6 and 12 pin 10.5VDC or above?
  • Page 58 No Power Troubleshooting Is the voltage between Pin 6 and 7 of connector CN7 on the main board measure +5VDC and the voltage between Pin 6 and 12 measure +12VDC? If not replace the Main board. If the voltage is present replace the Sub board.
  • Page 59 No Power Troubleshooting Continued 1. Check the connections of the power plug. 2. Check the voltage of the power outlet. Normal: AC 120V 3. Check whether the fuse is open. 4. Check the wires of the Main board power supply. - Measure the voltage between the black wire and the white wire of CN1.
  • Page 60 Incorrect LED Display Front Display incorrect or out Is the graphic LED connector normal? Connect the connector firmly. Graphic LED is defective. Please Is the condition of graphic LED normal? replace it. Is the voltage between the orange wire pin 6 and pink wire pin 7 4.5~5.25V and Main PBA is defective.
  • Page 61 No Buzzer Troubleshooting Can’t hear the buzzer sound and the display part is not turned on. Turn on the power switch. (All selection switches are valid Is the power switch ON? only when the power switch is turned ON.) Check the connection making Is the SUB PBA connection good? sure it is seated properly.
  • Page 62 No Drain Troubleshooting The drain is not working. (5E) Is the drain hose clear? Clean the inside of the drain hose. Is the Low Level Sensor working Low Level Sensor is defective. normally? (Check service test mode t8 Please replace it. and check the float operation.) Connect the drain pump terminal Is the drain pump connection good?
  • Page 63 No Water Fill Troubleshooting Water supply is not working. (4E) Water supply is correct and on Are the connections of each terminal of the water valve Reseat the water valve connector good? Does the water supply valve coil measure about 1.2K Ω? PCB assembly is defective.
  • Page 64 No Dry Operation Troubleshooting Dry is not working Is the dry fan Is the Rinse Aid Refill the rinse operating? (Utilize dispenser normal? aid dispenser. service test mode t6) Is the wire Connect wire Is the fan Firmly connect connection firmly firmly.
  • Page 65 DMR57 Wiring Diagram Included in the DMR57 and 77 is an auto wash cycle which will wash the contents of the machine until the internal water reaches a certain level of clarity. The sensor which determines this is the "Turbidity" sensor. If this sensor fails a possible symptom might be very long wash and rinse cycles if the auto wash mode is used.
  • Page 66 DMR77 Wiring Diagram The wiring diagrams for the DMR 77 and the DMR 57 differ only in that the 77 has a half load feature which means that on the 57 model the half load motor and half load sensor are not included. Note that the motors and the heater are not directly connected to the main board but all go through a power relay.
  • Page 67 Main PCB Connector Layout...
  • Page 68 Thermistor Resistance vs. Temperature Chart ℉ ℃ Resistance in K Ω 125.780 98.323 77.454 61.465 49.120 39.517 31.996 26.065 21.358 17.599 14.579 12.140 10.159 8.542...
  • Page 69 Error Code List Part 1 Error type Error Occurring condition Expected condition Mode Water supply 1. When the pulse of 100 or less is detected Water supply valve defect - a normally operating Error water valve should measure ~ 1200 Ω out of the even 1 minute after the water supply circuit.
  • Page 70 Error Code List Part 2 Error type Error Occurring condition Expected cause Mode Heater When the temperature change is 39 ℉ or less within Heater defect the first 10 minutes after the heating starts Error Heater Relay defect Heater terminal not connected Main Wire-Harness defect Main PBA defect When the temperature of the Thermistor is 176 ℉...

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Dmr77