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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. This is the reason
why the device can not be measured for resistance directly from the main board.
Also it may be possible for the display to light up but there are no functions if the
drive for the power relay is not working.

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Содержание DMR57 Series

Страница 1: ...aining 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...

Страница 2: ...2 Total Kitchen Design...

Страница 3: ...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...

Страница 4: ...Through tight isolation of the pump and a 6 layer Door insulation system The front door panel has a unique 6 layer insulation system which dampens the noise from water spray Stainless Steel inner doo...

Страница 5: ...lement is hidden below the all stainless tub This eliminates the possibility of accidentally touching the element when hot Also this structure provides a better appearance for the dishwasher Exposed h...

Страница 6: ...sidue 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...

Страница 7: ...items It even easily accommodates large 14 plates with just a simple height adjustment More importantly the drying performance is enhanced because the water is able to drain off the washed items more...

Страница 8: ...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...

Страница 9: ...e System Our main water spraying arm in the middle is tilted Its tilted shape sprays the water effectively in all parts of the machine This is important for washing 14 Plates Conventional washers use...

Страница 10: ...nsed 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...

Страница 11: ...11 Convenient Auto Drying...

Страница 12: ...g nozzle spray type Wash spray method 20 120 PSI Water Pressure Single phase AC 110V 60Hz Power Supply DMR 77LFS DMR 57LFS Model name Product Specifications Capacity 14 place settings Control panel de...

Страница 13: ...et Stair Style Basket Basket Gray Color Nylon Coating Gray Color Nylon Coating Basket Color Hot Water Only Hot water only Water Supply Delay Start Sanitize Delay Start Sanitize Half Load Normal Heavy...

Страница 14: ...eration 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 When Rinse...

Страница 15: ...postpones start for 1 hour This feature lets you wash dishes when it best fits your schedule allowing you to take advantage of reduced electrical rates or avoid busy water usage times The normal water...

Страница 16: ...this cycle for normally soiled dishes or fragile items such as glasses Delicate 3 3 Use this cycle for hard to clean heavily soiled dishes pots pans and dishes with heavy oil Heavy 2 2 Use this cycle...

Страница 17: ...0 7 30 32 30 16 30 16 30 0 45 Normal Total Time Dry Last Rinse Rinse 2 Rinse 1 Main wash Pre wash 3 Pre wash 2 Pre wash 1 Drain Program Sanitize No Sanitize 162 F 140 158 F 113 149 F Smart Auto 162 F...

Страница 18: ...0 45 Heavy 110 134 20 32 30 7 30 7 30 32 30 16 30 16 30 0 45 Normal Total Time Dry Rinse 3 Rinse 2 Rinse 1 Main wash Pre wash 3 Pre wash 2 Pre wash 1 Drain Program Sanitize No Sanitize 162 F 72 C 140...

Страница 19: ...anitize The number of Rinse Cycles 1 3 is determined by cycle selection Rinse Circulation Motor Runs Only Main wash 3 minutes after the fill operation is complete the detergent dispenser opens Deterge...

Страница 20: ...the water supply starts the ERROR 4E will be displayed C 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 i...

Страница 21: ...ed the power automatically turned OFF 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 fol...

Страница 22: ...in size Pre wash Main wash Rinse Dry cycle Operating Principles 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...

Страница 23: ...op the pump 2 If a low water level is detected water is supplied again and the operation continues Drain Error 5E When OFF status of Low Level Switch is not detected within 3 minutes during the drain...

Страница 24: ...24 No Drain Troubleshooting...

Страница 25: ...onds 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 t...

Страница 26: ...tart Key it toggles between run and stop Cold water Circulation Motor Fan Motor Drain Dispenser Half Load P2 Mode Not Used P3 Mode Not Use P4 Mode Touch Key LED Display LED test mode Press each button...

Страница 27: ...and run circulation pump to verify water distribution in tub 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 continue...

Страница 28: ...W t8 Actual temp C of water in sump The current temperature is displayed No change in water temperature Thermistor t7 t6 to OFF with no water t6 to ON with water 1 MICRO SWITCH On The sensing state is...

Страница 29: ...ted S 7 times Supply water L 6 times Operate Vent Motor and check whether Rinse is refilled dr 5 times Skip to dr in the Better Model Operate the Circulation Motor after initializing the Synchronous m...

Страница 30: ...ay Start key to start or stop the heater and the circulation pump 2 If a low water level is sensed water is supplied again and the operation continues 3 The current temperature is shown on the display...

Страница 31: ...leshooting 8 542 70 158 10 159 65 149 12 140 60 140 14 579 55 131 17 599 50 122 21 385 45 113 26 065 40 104 31 996 35 95 39 517 30 86 49 120 25 77 61 465 20 68 77 454 15 59 98 323 10 50 41 Temp F 125...

Страница 32: ...32 Peripheral Device Troubleshooting Part 2...

Страница 33: ...f possible 2 Close the water supply valve 3 Turn off the power You must turn off the circuit breaker connected to the product 4 Pull out the unit from the sink and lay it on the floor Be careful of th...

Страница 34: ...HECK LIST Be careful of the residual water inside the unit The resistance of THERMISTOR at 77 should be 49 Refer to table by temperature The voltage between THERMISTOR connecting wires should be 0 2V...

Страница 35: ...120 25 77 61 465 20 68 77 454 15 59 98 323 10 50 41 Temp F 125 780 5 Resistance k Temp C This chart can be used to accurately measure the thermistor resistance according to the ambient temperature su...

Страница 36: ...sassemble the Sump assembly and separate the Cover Sump cover Heater Heater Replacement part 1 1 2 3 4 Heater replacement starts with 1 Open the door and separate the upper and lower rack from the dis...

Страница 37: ...esistance of the heater ends 12 Measure after removing the connecting terminal Check the relay connecting terminal and check the operating signal Heater Replacement Part 2 5 6 7 5 Lay the product down...

Страница 38: ...stance 25 Measure product condition Check the voltage between the drain motor terminals of 120V PCB Check CN1 CN14 120V Drain Pump Disassembly 2 1 3 Lay the product down Protect the washer and the cus...

Страница 39: ...5E can be a restricted drain hose or a defective drain pump The drain pump should measure approximately 25 ohms The Drain pump starts when the operation button is initially entered or one second afte...

Страница 40: ...ty Replace the Main PCB ASSY Normal Replace the Drain Pump A good drain motor should measure 25 For drain problems never assume that the drain pump is defective without checking other items first Make...

Страница 41: ...Check PCB RELAY Check CN1 CN14 120VAC Water Valve Disassembly 1 2 3 4 Disassemble the front lower Cover Check before disassembly that the water supply valve connected to the water supply line is turn...

Страница 42: ...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 4E may also be displayed if the fill time exceeds 5 mi...

Страница 43: ...ween the white wire of the Main board CN1 Pin 1 and the brown wire of CN14 Pin 7 For a no water fill problem check the obvious first Make sure the water supply is turned on Check the drive voltage to...

Страница 44: ...he Circulation Impeller and separate the Case Scroll 5 Separate the Disposer Cutter Circulation Pump Disassembly Part 1 1 2 3 4 5 Open the door and pull out the Upper and Lower Basket Separate the Top...

Страница 45: ...of the residual water inside the unit from prior wash Check the voltage at the connectors 120VAC Check coil resistance 16 5 Measure after removing connectors PCB Check CN1 CN14 120VAC Circulation Pump...

Страница 46: ...he pump Verify the drive signal is reaching the pump prior to replacing the circulation pump t2 is displayed if there is a circulation pump error This can be a low water condition or a problem with th...

Страница 47: ...LED Front or PCB assembly Check List Check the voltage between Door S W ends When open 5VDC When closed 1VDC or below Control Panel Disassembly Part 1 1 2 3 Open the door and unscrew the Front Frame...

Страница 48: ...t hold the PCB assembly in place and disconnect the wiring harness of PCB Caution When separating the connectors always turn the power off before working Front Display LED removal 6 Remove the 2 screw...

Страница 49: ...nt Check List Because there is a risk of leakage after replacement check whether it is sealed properly The voltage on the terminals should measure 120VAC or a resistance of 2 3 Dispenser Replacement 1...

Страница 50: ...th a jig or long nose pliers Fan Vent Disassembly Part 1 1 2 3 4 Open the door and unscrew the screws of Front Frame and Front Tub 12 screws Caution When you unscrew all the screws the Front Door can...

Страница 51: ...her it is sealed properly Check the voltage of Fan Vent ends 120V PCB RELAY Check CN1 CN14 120V Measure coil resistance of both ends 150 Fan Vent Disassembly Part 2 5 6 7 8 5 Remove the 2 screws holdi...

Страница 52: ...0VAC while operating NOTE The power relay must be good for the fan to operate The fan is no different from testing any other device in the washer There should be a drive voltage of 120VAC going to it...

Страница 53: ...k List The voltage at the Micro Switch terminals should measure 4 5 5 25V after drain completion Measuring the continuity of the Micro Switch should measure When pulling the lever up Short When pullin...

Страница 54: ...It is normal when the voltage is 0 5V or below after water supply is completed and 4 5 5 25V after water drain is completed Measure the Micro S W product Short when the lever is pulled up and open wh...

Страница 55: ...ributor motor out Check List Check PCB Check CN1 CN14 voltage 120VAC Check the voltage of Synchronous Motor 120VAC Check the resistance of Synchronous Motor 2 6k Distributor Disassembly 1 2 3 4 Place...

Страница 56: ...ter check or replacement you must be careful not to switch the connectors to the wrong relay Relay and Fuse Replacement 1 2 3 4 Unscrew the screws 2 connecting the right frame When you separate the ri...

Страница 57: ...ad Sub PBA ASSY is defective Please replace it Is the voltage between Pin 6 and 7 of CN7 connector of main PBA 4 5VDC or above and the voltage between Pin 6 and 12 pin 10 5VDC or above The main PBA is...

Страница 58: ...hat are always on such as the 5 and 12 volt lines These voltages are always there as long as the power is applied to the machine When measuring these voltages never assume that the chassis is the refe...

Страница 59: ...ure the voltage between the black wire and the white wire of CN1 Normal AC 120V To test for a no power condition start by 1 Check the connections of the power plug 2 Check the voltage of the power out...

Страница 60: ...defective Please replace it Is the voltage between the orange wire pin 6 and pink wire pin 7 4 5 5 25V and the voltage between orange wire pin 6 and the white wire pin 12 10 5 13V Good Graphic LED is...

Страница 61: ...ol Panel ASSY Is the voltage between pin 6 and 7 of CN7 connector of main PBA 4 5V or higher and the voltage between pin 6 and 12 pin 10 5V or higher Check the connection making sure it is seated prop...

Страница 62: ...Y Is the drain pump connection good Does the drain motor read about 25 Main PBA ASSY is defective Please replace it Is the main relay working normally Refer to Main relay is not working Connect the dr...

Страница 63: ...y working normally Refer to Main relay does not work The water supply pressure is too low Check the mid valve of the water supply and increase the water supply pressure Does the valve open continuousl...

Страница 64: ...Fan Motor coil read about 150 Firmly connect the connector ASSY Fan Vent is defective Please replace it N Y N Y Is the wire connection firmly connected Is the Rinse Aid dispenser normal Y N Is the Di...

Страница 65: ...he 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 au...

Страница 66: ...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 This is the reason why the device can not be me...

Страница 67: ...67 Main PCB Connector Layout...

Страница 68: ...vs Temperature Chart 8 542 70 158 10 159 65 149 12 140 60 140 14 579 55 131 17 599 50 122 21 358 45 113 26 065 40 104 31 996 35 95 39 517 30 86 49 120 25 77 61 465 20 68 77 454 15 59 98 323 10 50 41 1...

Страница 69: ...t connected Main PBA defect When OFF status of Low Level switch is not detected within 3 minutes during the drain 5E Drain Error Thermistor Defect Water supply temperature of 176 or above Main PBA def...

Страница 70: ...r over 30 seconds bE2 Button Error Low Level Sensor defect 0 5V when the switch is closed Low Level Sensor terminal not connected Main PBA defect When Low Level is detected to cause Error even after t...

Страница 71: ...71...

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