Samsung DW80K5050US Service Manual
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Samsung DW80K5050US Service Manual

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SERVICE
DISHWASHER
DISHWASHER
Basic model : DW80K5050US
Model Name : DW80M3021US
Model Code : DW80M3021US/AC
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference
CONTENTS

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Summary of Contents for Samsung DW80K5050US

  • Page 1 DISHWASHER Basic model : DW80K5050US Model Name : DW80M3021US Model Code : DW80M3021US/AC SERVICE Manual DISHWASHER CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7. Reference...

  • Page 2: Table Of Contents

    CONTENTS 1. Safety Instructions ..............1 1-1.

  • Page 3: Safety Instructions

    1. SAFETY INSTRUCTIONS 1-1. SAFETY INSTRUCTIONS FOR SERVICE ENGINEERS ሪ Make sure to observe the following instructions to operate the product correctly and safely and prevent possible accidents and hazards while servicing. ሪ Two types of safety symbols, Warning and Caution, are used in the safety instructions. Warning Hazards or unsafe practices that may result in severe personal injury or death. Caution Hazards or unsafe practices that may result in minor personal injury or property damage. Warning Before Servicing (When servicing electrical parts or harnesses) Make sure to disconnect the circuit breaker or power cable before ࣃ servicing. - Failure to do so may result in a risk of electric shock. Do not allow consumers to connect several appliances to a single power outlet at the ࣃ same time. - There is a risk of fire due to overheating. When removing the power cord, make sure to hold the power plug when pulling the plug ࣃ from the outlet. - Failure to do so may damage the plug and result in fire or electric shock. When the dishwasher is not being used, make sure to disconnect the circuit breaker or ࣃ power cable from the power outlet. - Failure to do so may result in electric shock or fire due to lightning. Do not place or use gasoline, thinners, alcohol, or other flammable or explosive substances near the dishwasher. ࣃ - There is a risk of explosion and fire caused from electric sparks.
  • Page 4 While Servicing Check if the power cable is damaged, flattened, cut or otherwise degraded. ࣃ - I f faulty, replace it immediately. Failure to do so may result in electric shock or fire. Completely remove any dust or foreign material from the housing, wiring and connection parts. ࣃ - This will prevent a risk of fire due to arcing and short circuits in advance. When connecting wires, make sure to connect them using the correct connectors and check that they are ࣃ completely connected. - If tape is used instead of the connectors, it may cause fire due to arcing. Make sure to disconnect the PBA power terminals before starting the service. ࣃ - Failing to do so may result in a high voltage electric shock. After Servicing Check for any water leakage. ࣃ - P erform a test using the standard(normal) cycle and check whether there is any water leakage through the floor section or the pipes. Do not allow consumers to repair or service any part of the dishwasher themselves. ࣃ - This may result in personal injury and shorten the product life. If it seems that grounding is needed due to water or moisture, make sure to run grounding wires. ࣃ - Failure to do so may result in electric shock due to electric leakage. 2 _ Safety Instructions...
  • Page 5 Caution Before Servicing Do not sprinkle water onto the dishwasher directly when cleaning it. ࣃ - This may result in electric shock or fire, and may shorten the product life. Do not place any containers with water on the dishwasher. ࣃ - I f the water is spilled, it may result in electric shock or fire. This will also shorten the product life. Do not install the dishwasher in a location exposed to snow or rain. ࣃ - This may result in electric shock or fire, and shorten the product life. Do not press a control button using a sharp tool or object. ࣃ - This may result in electric shock or damage to the product. During Servicing When connecting a wiring harness, make sure to seal it completely so no liquid can enter. ࣃ - Make sure that the connections are secured by slightly pulling on them. Check if there is any evidence that liquid has entered electric components or connections. ࣃ - If any liquid has entered into a part, replace it or completely remove any remaining moisture from it. If you need to place the dishwasher on its back for servicing purposes, place a support(s) on the floor and lay it ࣃ down carefully so the back is on the floor. - Do not lay it down on its front or side. This may result in scratches to the surface or damage to the parts. Safety Instructions _ 3...
  • Page 6 After Servicing Check the assembled status of the parts. ࣃ - They must be the same as before servicing. Check whether the product is level with the floor and secured to the cabinet and under ࣃ the counter. - Vibrations can shorten the life of the product. 4 _ Safety Instructions...

  • Page 7: Features And Specifications

    2. FEATURES AND SPECIFICATIONS 2-1. FEATURES Features Description Remarks The upper rack is slanted for larger dishes. The space has been maximized to Extra large capacity accommodate a variety of dish sizes. The smart auto cycle determines the level of soil on the dishes and initiates the Increased convenience optimal cycle for cleaning. Use this feature to save water, energy, and time. Efficient noise control technology gives you the quietest possible operation. Extremely quiet operation Your new Samsung dishwasher is quieter than ever. Cleaning the filter yourself is a thing of the past! This product keeps food waste Self-cleaning filter internally while operating, then drains it automatically with the water. Features and Specifications _ 5...

  • Page 8: Specifications

    2-2. SPECIFICATIONS Model DW80M3021US Wash capacity 15 place settings Main Features Control panel design Front control type + Tact operation. Dimension (W x D x H) 23 7 ⁄ 8 x 24 3 ⁄ 4 x 33 7 ⁄ 8 in. (605 x 627 x 860 mm) Flexible Style Inclined Rack System, Height adjustable Upper Basket(manual) Sales Point Upgraded Kitchen Pleasant kitchen environment, Simple & Modern design Smart Control Soil sensing Programming, ABS door system Accessory parts - User/Installation manual, Installation Kit. 6 _ Features and Specifications...

  • Page 9: Comparing Specifications With Existing Models

    2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS NEW MODEL DW80M3021US/AC Model Power supply 120 V, 60 Hz AC only Water pressure 20 ~ 120 psi (140 ~ 830 kPa) Wash method Rotating nozzle spray type Dry method Air Vent dry system Heater : 1100 W Power Wash Motor : 60 - 100 W Water consumption 2.8~7.2 gallon (10.7~27.2L), Normal Cycle Panel Control Silver Control Type Touch Design Specifications Frame Front Basket Handle Soil Detection Sensors...

  • Page 10: Options Specifications

    2-4. OPTIONS SPECIFICATIONS Photo Item Code Remarks Assy-Install Kit: 2 Bracket-install 2 screws for top mounting DD98-01019A 2 screws for kick plate 2 screws for side wall Provided with the dishwasher User Manual DD81-02549A Install Guide DD81-02557A 90° Elbow(3/8”) Water Supply Line (Flexible STS supply line is recommend) Air Gap Sold separately Rubber Connector HOSE CLAMP STRAIN RELIEF 8 _ Features and Specifications...

  • Page 11: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3-1. TOOLS FOR REMOVAL AND REASSEMBLY Tool image Tool Remarks Type Adjustable Wrench Open-end Wrench 1-7/16” Vice pliers Others Common tools for servicing (screwdriver, nipper, long nose pliers) Screwdriver - Philips, flat, Torx T20, Small flat Nut Driver Heater bracket Nut 10mm * Preparation for parts replacement 1. T ake out the residual water inside the product. (Drain the water by operating the drain pump) 2. Close the water supply valve. 3. T urn off the power & disconnect power cable. You must turn off the circuit breaker connected to the product. 4. P ull out the unit from the sink and lay it on the floor. Be careful of the drain hose when pulling out the unit.

  • Page 12: Preparation For Parts Replacement

    3-2. 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. Pull out the unit from the sink and lay it on the floor. Be careful of the drain hose when pulling out the unit. Warning Always turn off the electric power supply & water supply before servicing any electrical component, making ohmmeter checks, or replacing any parts. Caution Before moving the unit, laying it down for service, or removing any parts for service be sure to drain as much of the water from the unit as possible. Use a protective mat or towel to prevent damage to the floor or having any of the remaining water spill on the floor. A ll voltage checks should be made with a voltmeter having a full scale range of 250 volts or higher. After service is completed, be sure all safety grounding circuits are complete, all electrical connections are secure, and all access panels are in place. Before servicing, make sure to remove all items from inside of the dishwasher, including the wash racks. 3-3. REMOVING THE UPPER RACK Pull the upper rack towards the front and then remove it by lifting it up slightly and pulling it towards the front.
  • Page 13 Part Figure Description Preparation: • Make sure to disconnect the power. 1. You can see the Main-PBA case under the door. 2. Remove the two (2) screws of PBA case and pull out the PBA cover carefully. 3. Remove all connectors on the PBA 4. R emove the three (2) screws on the PBA board . 5. Pull out the PBA board carefully. Main PBA W hen removing the Main PBA, lift the PBA board up carefully because it is hanging on the PBA case by two hooks. Disassembly and Reassembly _ 11...
  • Page 14 Part Figure Description Preparation: • Make sure to disconnect the power. • Remove the lower basket in the dishwasher. • Cover the Assy sump with a towel to prevent losing screws. 1. Open the door completely. Remove the 12 screws holding the tub front, door outer, and control panel in place. Door outer Before removing the parts, place a cushioned mat on the floor to prevent the parts from being scratched. After removing screws, make sure to hold the tub front using your hand. It can prevent closing door suddenly and harming you. Caution Do not place the removed screws on the door inner. They may fall into the sump assy.2. Remove the 12 screws (short one 8 pieces, long one 4 pieces) which holding the door outer and control panel in place. 2. Pull out the Door outer & the Assy control panel carefully. 3. Remove the Assy control panel from Door outer. ( Pull out just a little) Preparation: • Disassemble the frame front. 1. When removing the door latch, lift it up because the latch is secured by one hooks.
  • Page 15 Part Figure Description 1. Open the door completely. Remove the twelve (12) screws holding the tub front, door outer, and panel control in place. Caution Do not place the removed screws on the tub front. They may fall into the sump assy. 2. Pull out the Door outer & the Assy control panel carefully. Condensing dry system 3. Remove the fan motor & thermal actuator connectors. 4. Remove the single (1) screw holding the bracket cover fan in place. Disassembly and Reassembly _ 13...
  • Page 16 Part Figure Description 4. Remove the cover fan by rotating it counterclockwise. Use a jig. If you have no jig, use a tool such as a pair of long nose pliers. Remove it carefully so that the part is not damaged 5. Remove the two (2) screws holding the cover fan in place. Condensing dry system 6. Hold and remove both the case vent assy which are located at the front of the tub front. 14 _ Disassembly and Reassembly...
  • Page 17 Part Figure Description Preparation: • Disassemble the door outer. 1. Remove the Door lock switch from Assy panel control. Control Panel 2. Remove the wire connectors from Panel control. Disassembly and Reassembly _ 15...
  • Page 18 Part Figure Description Preparation: • Disassemble the door outer. Cap Dry Outlet 1. Push it to the inside carefully. 16 _ Disassembly and Reassembly...
  • Page 19 Part Figure Description Preparation: • Disassemble the Door outer. - Refer the “Door-outer” disassembly section to separate the Door outer. 1. D isconnect the two (2) wire from the Dispenser. Dispenser 2. T he dispenser is fixed to the tub front with many hooks. Use several flat screwdrivers to remove it. 3. P ush it to the inside carefully. Caution B e careful as the tub front is sharp. Disassembly and Reassembly _ 17...
  • Page 20 Part Figure Description Preparation: • Make sure to disconnect the power, water supply, and drain hose connections. • Remove the upper & lower baskets in the dishwasher. • Pull out the dishwasher & carefully lay the dishwasher down on its back. • Remove the water supply line(& elbow). Caution Make sure to turn the water supply off before removing the water supply line. 1. Remove the cover PCB and pull out the case PCB without disconnecting wire connectors. - When remove the PCB, lift up the two (2clasps under the base by using a flat tip screwdriver in a lever effect. 2. Pull out the case PCB and secure it to the base using duct tape. Shown in the image to the left. Bracket front lower 3. Remove the four (4) screws on both sides of the bracket front lower. 4. The guide wire is attached to the bracket front lower with three hooks. Use a pair of needle nose pliers or flat screwdriver. 5. Using a Philips screw driver, lift up the each clasp on both sides of the bracket front lower. 18 _ Disassembly and Reassembly...
  • Page 21 Part Figure Description 6. To remove the bracket front lower entirely, grab the top of the bracket front lower (on both Bracket front sides) and pull the top out. At the same time, lower push the bottom of the bracket front lower (on both sides) in towards the unit. Preparation: • Remove the lower basket in the dishwasher. • Make sure to remove the water in each nozzle to block the wet.(The DW80F800/ DW80F600 models nozzle is different shape but disassemble method is same as below.) 1. Upper Nozzle : Remove it by rotating the holder. (counterclockwise) Assy Rotor 2. Middle Nozzle : Remove it by rotating the holder from upper basket. (counterclockwise) 3. Lower Nozzle : Pull out carefully it from the Assy sump. Disassembly and Reassembly _ 19...
  • Page 22 Part Figure Description 1. The duct nozzle is fixed by two brackets inside tub. 2. Use a flat tip screwdriver to pry the tabs that are securing the bracket duct from the top and the middle of the tub. Be careful not to let the screwdriver slip when prying the tabs. Doing so will cause damage to the tub. Duct-Main 3. Remove the duct nozzle by rotating to left side. 20 _ Disassembly and Reassembly...
  • Page 23 Part Figure Description Preparation: • Disassemble the baskets, nozzles, duct nozzle & storm wash nozzle. • Disassemble the frame left & the shutter & bracket front lower. - Refer to each disassembly section. 1. R emove the parts which are connected to the Assy sump. - connectors, drain pump, screws Assy Sump 2. R emove the three (3) screws & holders in Assy sump. Pull out the holders using a pair of needle nose pliers. At the same time, press the tab at the top of the holder using a screwdriver. 3. P ush the Assy sump using your hands toward the inside carefully. Assy Cover Caution nozzle Remove the water from the sump assembly before removing the sump assembly. Failure to do so will cause to be released onto the floor. Disassembly and Reassembly _ 21...
  • Page 24 Part Figure Description Preparation: • Remove the baskets, nozzles, duct-main - Refer the each disassembly section to separate. 1. Release the 13 screws on Assy sump. (Except the two (2) screws holding the holder nozzle in the center of the sump.) Take off the filter mesh body, cover sump (& holder nozzle L). 2. Pull out the Assy cover sump slightly and Filter Mesh Assy Sump- hold and rotate the duct nozzle and Assy body Upper parts case sump together. & Cover Sump & Impeller Filter Mesh body & Case scroll & Disposer Cover Sump 3.
  • Page 25 Part Figure Description Preparation: • Make sure to disconnect the power, water supply, and drain hose connections. • Remove the upper & lower baskets in the dishwasher. • Pull out the dishwasher carefully. 1. Remove the two (2) screws of the frame left. 2. Remove the frame left. Assy Case Brake Caution Make sure to wear gloves when removing it. Be Flow meter careful as the steel plate is sharp and may cut you. Inlet Outlet 3. . Remove cover brake by rotating.(counterclockwise) Use a jig. If you do not have a jig, you can use a needle nose pliers.(Be careful when removing the cover as it is easily damaged.) 4. Loosen the four (4) clamps and release the four (4) hoses from the Assy case brake. Caution Water remaining in the Assy case sensor and Assy case break will come out. Lay a towel on the floor to absorb any water that may come out. Disassembly and Reassembly _ 23...
  • Page 26 Part Figure Description Preparation: • Disassemble the Assy case brake. - Refer to the Assy case brake disassembly section to separate. 1. Loosen the clamp(left side in picture) and release the hose from the Assy case brake. 2. You can see the hose holder in the dishwasher backside. 3. Push the two(2) hooks of the drain hose holder to nside. Drain Hose 4. Pull out the hose carefully at the side position. 5. Remove the hose holder by releasing the hook. 6. Remove drain hose entirely. 24 _ Disassembly and Reassembly...
  • Page 27 Part Figure Description Preparation: • Make sure to disconnect the power, water supply, and drain hose connections. • Remove the upper & lower baskets in the dishwasher. • Pull out the dishwasher carefully. 1. Lay the dishwasher down on its back. Release the hooks ecuring the base and shutter in place. 2. Pull out the shutter and release the leakage sensor Shutter connector. 3. Remove the leakage sensor from the shutter by unfastening the two(2) screws. Disassembly and Reassembly _ 25...
  • Page 28 Part Figure Description Preparation : Make sure to disconnect the power, water supply, • and drain hose connections. Remove the upper & lower baskets in the • dishwasher. Pull out the dishwasher & lay the dishwasher down • on its back. Remove the shutter. • 1. Turn the rear leg adjusting screw clockwise until the rear adjusting leg is fully extended. Rear Leg + Adjust bar 2. Remove the screw that is holding the case gear to the unit. 3. The case gear is made up of a worm gear and helical gear. Pull out the worm gear first. 4. Grab the adjusting bar and pull it out while pushing the helical gear from the backside. The adjusting leg bar is attached to the base by a hook, which is indicated in the red circle in the the image to the left. 26 _ Disassembly and Reassembly...
  • Page 29 Part Figure Description 1. Remove the two (2) screws from the Base 2. Lift up the inlet valve and disconnect the inlet valve wire connector. 3. Release the hose clamp and disconnect hose. Water Valve Caution When removing the hose clamp, take care to hold it tightly. The clamp is under tension and if released, it can become a projectile. Caution There will be a residual amount of water in the valve and valve hose. Use a towel to absorb the water when removing the valve. Disassembly and Reassembly _ 27...
  • Page 30 Part Figure Description Preparation: • Disassemble the shutter. - Refer to “shutter” disassembly section. 1. Disconnect the wire terminal connected to the thermistor. Thermistor Release the two(2) screws of thermistor. 3. Pull out it carefully. Inspect the “O” ring seal on the thermistor. If it is damaged in anyway, replace the “O” ring seal. 28 _ Disassembly and Reassembly...
  • Page 31 Part Figure Description Preparation: • Disassemble the shutter. - Refer to the “shutter” disassembly section. 1. Remove the drain pump by gently prying up the locking tab on the pump. Then rotate the pump clockwise until it releases from the sump. Then pull the pump out. Caution Remove all water from the sump assembly before removing the pump. Failure to do so will cause the water to be released onto the floor. Drain Pump Inspect the “O” ring seal around the drain pump. If it is damaged in any way, replace the “O” ring seal. 2. Disconnect the two(2) drain pump connectors. Preparation: • Disassemble the shutter. - Refer to the “shutter” disassembly section. 1. Remove the turbidity sensor connector. Turbidity Sensor 2. Gently pry up the tabs on the turbidity sensor and pull it out of the sump assembly. Caution Carefully use a flat tip screwdriver to pry the tabs on the sensor as the tabs are fragile and can be damaged easily. Inspect the “O” ring seal around the sensor. If it is damaged in anyway, replace the “O” ring seal. Disassembly and Reassembly _ 29...
  • Page 32 Part Figure Description Preparation: • Disassemble the cover sump & cutter disposer and shutter. - Refer to each disassembly section. 1. Remove the circulation motor and capacitor connection. 2. Remove the four(4) screws holding the circulation Circulation Motor motor and the sump in place, and the one(1) screw for earth connection from main wire-harness. 3. Hold and pull out the circulation motor carefully to remove it from the sump. Caution Remove the water from the sump assembly beforeremoving the motor. Failure to do so will cause to be released onto the floor. Caution Be careful not to break the oil seal when removing the motor. 30 _ Disassembly and Reassembly...
  • Page 33 Part Figure Description Preparation: • Make sure to disconnect the power. • Disassemble the cover sump & cutter disposer. • Disassemble the shutter & bracket front lower. - Refer the each disassembly section. Heater 1. Remove the two (2) heater connectors. 2. Remove a ground screw on the heater bracket. 3. Loosen the nut between the heater terminals. (10mm). 4. Remove the heater by pulling it out of the sump assembly. Caution The heater may be very hot. Make sure to check it before touching the heater. Caution Make sure to check if there is any water in the sump assembly. Remove any remaining water, to prevent water leakages while servicing. Disassembly and Reassembly _ 31...
  • Page 34 Part Figure Description Preparation: • Disassemble the frame L/R and the shutter. - Refer to each disassembly section. 1. Remove the eight (8) screws on the base plate both-sides. 2. Carefully lay the dishwasher down on its back. Base 3. Remove the cover PCB and pull out the case PCB and disconnect the wire connectors. 4. Disconnect the wire connectors from Assy Sump. 5. Pull out the base plate slightly. 6. Remove other parts as needed to remove the base. Ex. Main wire-harness. Hoses. 32 _ Disassembly and Reassembly...
  • Page 35 Part Figure Description 1 Remove the two (2) screws on the frame-R. (in Red circle) 2. Remove the ground wire screw form the door hinge. 3. Remove the Cover from the EMI Filter. EMI Filter 4. Disconnect the two (2) wires from the EMI filter. 5. Use a wrench to remove the M8 nut from the EMI filter. Disassembly and Reassembly _ 33...

  • Page 36: Troubleshooting

    4. TROUBLESHOOTING 4-1. PREPARATION 4-1-1. Check Code Check Check code code When occur Symptom Possible Causes Display Recall Conditions for error to occur: Condition 1) Condition 1) If the number of water supply pulses increases to fewer than 10 Water supply valve OFF within 20 seconds after water is supplied. (If it increases to fewer Condition 2) than 10 within 10 seconds, turn the water supply valve ‘OFF’ for 1 - The water supply pressure is low. If draining is performed for 3 minutes while second and then re-supply.) - The water supply valve is closed. water supply valve is OFF. Condition 2) - The aqua stop is out of order.
  • Page 37 Check Check code code When occur Symptom Possible Causes Display Recall - The heater is out of order. - When the temperature is measured as equal to or greater than - The driving part stops and the main relay is turned off. - The thermistor is out of order. 80℃ for 3 seconds. - The touch button is out of order. - When the button is pressed and held for 30 continuous - Keep going remained cycle seconds or longer. - An object is on the touch button. - When IC communications between the Sub PBA and the - The sub PBA or touch button PBA is - Keep going remained cycle touch button fails. not properly connected. No display - The main PBA or sub PBA is out of order. - When communications between the main PBA and the sub PBA fails for 24 seconds. - Keep going remained cycle - The communications connection (In Test Mode, communication fails for 6 seconds.) for the main PBA or sub PBA is not properly connected. - Main relay off - If sensor data over 3V is detected after draining (20 seconds on/5 seconds off) is - When the water leakage sensor data is equal to or less than - There is a water leak.
  • Page 38 Resolution by symptom ● 4E(4C) : When water supply is not working 4E(4C) occur in water filling period Water valve is working normally Water is not in Tub. Water filled in Tub. (terminal connection, Foreign substance in Filter) Water faucet is OK. Flow-meter working normally. Drain pump working normally. Water inlet hose is OK. (Filter, Aqua-stop) Pressure switch is working normally The water pressure is OK. Main PBA is defective. Please replace it. 36 _ Troubleshooting...
  • Page 39 Resolution by symptom ● HE(HC) : When heater is not working HE(HC) occur Heater is OK. Check the drain hose Fixing or Replace Water level in Tub is OK. installation condition. the Heater assembly. In Heater operation step, If pressure switch detect low level water, safety program is working. Fixing or Replace At this time, heater is not operated. Thermistor is OK. the Thermistor. So, water temp. is not increased. Then, HE error is occurred. Main PBA is defective. Please replace it. Troubleshooting_37...

  • Page 40: Service Inspection Mode

    4-2. SERVICE INSPECTION MODE ■ SVC Test mode Related Item Symptoms Description Parts Enable Smart - 1) Set the timer for 17h with Power On. Install Mode - 2) Press Hi-Temp Wash Key for at least 7 seconds. Disable Smart When Power Key is pressed, it is disabled with Power Off. Install Mode - There are Auto Mode and Manual Mode. When Smart Install Mode is enabled, it is set to Auto Mode by default. - Mode change KEY : Changing modes can be done by entering the Auto Key while on standby or when the operation Smart Install Mode of each mode has been completed. (AS → Manual mode STEP[1] → Manual mode STEP[2] Configuration → ... Manual mode STEP[9] → AS → ...(Circulation)) - Entering the mode change KEY when the Door Open check code occurs will cancel the check code and go to the state where mode change can be performed. Smart Install Mode - Displays “AS” before Auto Mode is enabled. Display - During Auto Mode, the current Step No. blinks as an indication. Closing the Door within 3.7 seconds after entering the Start Key will automatically run Step 1 through to Step 6. - If the Door remains open for more than 3.7 seconds after the Start Key is entered, the Door Open inspection code “dC (dC1)” will appear. - The machine will stop if the Door opens during operation, and the Door Open inspection code “dC (dC1)” will appear. However, for models that utilize Auto Door Open, this excludes sections that come after the Auto Door Open operation. - Pressing the Start Key while the Door Open inspection code “dC (dC1)” is showing will clear the displayed inspection code and restart from the initial AS. - For models with a Vane, the Vane must always be in the parking location when the nozzle at the bottom begins to spray water (leakage prevention). Auto Mode ※ dC1 will occur if Door Open information is detected only in Inverter Micom.
  • Page 41 Related Item Symptoms Description Parts 6. [Auto Mode STEP 2: check water supply] 1) Supply 4.5L of water. ※ Water supply error : detected in the same way as normal water supply error but if water is not fully supplied for a maximum of 5 minutes, the water supply inspection code is activated. 2) Water supply operates (including the internal pressure calibration) according to the development model specifications. 3) Once the water supply, internal pressure calibration and alternating motor operation completes, proceed to [STEP3]. 7. [Auto Mode STEP 3: check nozzle] 1) Operate the circulation pump. (BLDC: 2400RPM, AC Pump: LOW (default)/HI Setting) 2) Operates the alternating motor in the order of the locations where alternation takes place during the water supply step. Skip any unused alternation. Operate for 10 seconds each time after it reaches the target alternation location. ex) Location #1: 10 seconds, Location #2: 10 seconds , Location #3: 10 seconds, … Location #6: (10 seconds) Location #1: 10 seconds ※ For models with AC circulation pump, operate in the order of LOW (starting alternation → HI → LOW → for each alternation location. When the last alternation completes, the circulation pump operates from LOW (starting alternation) again. Although there will be no alternation changes for models that do not use an alternating motor, operate the C-Pump on LOW (10 seconds) -> C-Pump on HI (10 seconds). Auto Mode ※ For models with a Vane, move the Vane back and forth once when operating the bottom. Configuration For Vane operation alternations, detect the Vane reset position and then operate the relevant alternation while moving it back and forth once. 3) Operate the Dispenser Actuator for 130 seconds. 4) [STEP3] Operate the heater 10 seconds after operating. 5) If after 1 Cycle is run for each alternating position and the temperature has increased by more than 2 degrees over the initially saved temperature (the initial temperature saving point is saved 30 seconds after running [STEP3]), or if more than 73 degrees is detected when operating the heater, turn the heater OFF and judge it as normal operations of the heater. 6) Go to [STEP4] when more than 1 Cycle is run for each alternating position until the last alternation, the heater operation is judged to be normal, and then the Dispenser is operated for 130 seconds. ※ However, for models with a Vane, go to [STEP4] after moving the Vane from the Vane Reset position to the front for 1.0 second. 7) HC1 error will occur if the heater operation is not judged to be normal after 10 minutes have passed. 8. [Auto Mode STEP 4: check drain] 1) Operate the drain pump. 2) Follow the same steps as PreDrain. 3) If low water level is not detected in the first cycle after draining starts, the drain inspection code is activated. 4) For models without low water level detection, proceed to the next step after draining without the drain inspection code.
  • Page 42 Related Item Symptoms Description Parts 9. [Auto Mode STEP 5: check drying] 1) Operate Auto Door Open Actuator. - If the Door does not open within 3 minutes after the Auto Door Open Actuator is run, it will Retry once (10 seconds Off, 3 minutes On). - If the Door does not open after the retry, a DC3 check code will occur. 2) If the door open is detected after Auto Door Open, operate for additional 30 seconds from the time the door opens Auto Mode and complete the Auto Door Open step. Configuration ※ For models that utilize Auto Door Open, operate the Auto Door Open Actuator. 3) Operate the Fan Motor and Dry Actuator for 30 seconds. (Only for models with the relevant part) 4) Once the above 1), 2) and 3) are complete, proceed to [STEP 6]. 10. [Auto Mode STEP 6: complete the Auto Mode operation] 1) "OK" displays. 2) At the time Auto Mode operation completes, Smart Install Auto Mode Completion is saved to EEPROM. - Each time Auto Key is pressed, the Manual Mode step changes indicating Step No. - After Max Step No. is selected, it is automatically changed to Auto Mode "AS”. - Start Key must be pressed to start the Manual Mode steps. - The Step of the manual mode will operate only when the Door is closed within 3.7 seconds after entering the Start Key. - If the Door is left open for 3.7 seconds after the Start Key is entered, the Door Open check code “dC(dC1)” will be displayed. - During manual mode operations, if the relevant Step number blinks and the relevant Step operation has been completed, the Display will indicate the relevant Step number. - If the Door opens during operation, it will stop and the Door Open check code “dC(dC1)” will be displayed. (However, Auto Door Open Mode is an exception. The operation is resumed as it detects the door is open.) - When the Door open check code "dC(dC1)" is displayed, pressing the Start Key will turn the check code display off and t will restart. - When restarting, the mode starts from the beginning. Manual Mode - For models with a vane, the vane must be always positioned at parking when the bottom nozzle starts spraying Configuration (to prevent leakage). ※ dC1 will occur if Door Open information is detected only in Inverter Micom. 1. [Manual Mode STEP 1: drain / supply of water] 1) Perform Auto Mode STEP 4 (drainage) and STEP 2 (water supply). 2. [Manual Mode STEP 2: check the nozzle] [BLDC circulation pump model] - Each time the Key below is entered, setup will change in units of 100rpm and the current relevant RPM will be displayed for 2 seconds.
  • Page 43 Related Item Symptoms Description Parts [AC circulation pump model] 1) Normal Key : Low(default) -> Hi ->Low -> Hi -> .. 2) Delicate Key : Low(default) -> Hi ->Low -> Hi -> ... - Use Express60 Key if there is no Delicate Key [ Alternation Location Change ] - Each time Heavy Course Key is pressed, the alternation nozzle position can be set and it starts from its default position. Unused alternation cannot be set. No. 1 (default: the default position varies by model → No. 2 → No. 3 → No. 4 → No. 5 → No. 6 (max. alternation target position: varies by model) → No. 1 → Please refer to [Dish Washer-Washing Performance Specifications-Distributor Control] for the specifications of alternation position by model. (When the key is pressed, the current target alternation position displays for 2 seconds.) ※ For models that do not use an alternating motor, entering this Key will trigger an Invalid tone. ※ When performing this STEP without performing STEP 1 as it has been already performed, calibrate the pressure in the tub when restarting or operating the nozzle for the first time. ※ If STEP 1 has not been performed before, perform STEP 1 first. (STEP 1 is not recognized as having been performed if STEP 1 is re-operated, STEP 6 has been performed or Auto Mode has been enabled.) Manual Mode ※ For models with vane, the vane must move back and forth when the bottom alternation is in progress. Configuration 3. [Manual Mode STEP 3: inspect the heater] - Set the alternation to the default position. - Circulation pump: operate BDLC Model at 2400RPM, and AC model at LOW Power setting. - Operate the heater after operating the circulation pump for 10 seconds. - Turn the heater off when the max. temperature reaches 73 degrees or the max. operation time passes 10 minutes. - During operation, the display alternates between the temperature of the heater and the current Step No. ※ When performing this STEP without performing STEP 1 as it has been already performed, calibrate the pressure in the tub when restarting or operating the nozzle for the first time. ※ If STEP 1 has not been performed before, perform STEP 1 first. Only "3" blinks during STEP 1 operation (no display of temperature). (STEP 1 is not recognized as having been performed if STEP 1 is re-operated, STEP 6 has been performed or Auto Mode has been enabled.) 4. [Manual Mode STEP 4: operate the dispenser] - Operate the dispenser for 130 seconds. 5. [Manual Mode STEP 5: operate the fan] - Operate the Fan Motor and Dry Actuator for 30 seconds. (Only for models with the relevant part) Troubleshooting_41...
  • Page 44 Related Item Symptoms Description Parts 6. [Manual Mode STEP 6: drain] 1) Operate the drain pump. 2) Follow the same steps as PreDrain. 3) If water level is not detected after draining, the drain inspection code is activated. 4) For models without low water level detection, proceed to the next step after draining without the drain inspection code. 7. [Manual Mode STEP 7: operate Auto Door Open Actuator] 1) Operate Auto Door Open Actuator. (Only for models with the relevant part) - If the Door does not open within 3 minutes after the Auto Door Open Actuator is run, it will Retry once(10 seconds Off, 3 minutes On). - If the Door does not open after the retry, a DC3 check code will occur.Before the DC3 check code occurs, operate the Auto Door Open Actuator for an additional 30 seconds during Door open detection. 8. [Manual mode step 8: Water Tank water filling operation] Please refer to the diagram below for the control times of the control components that run in this mode. (Applicable only to models that have the relevant running parts.) Manual Mode Configuration For the Water Tank water filling operation in the diagram, please refer to the water filling operation of [Dishwasher - Additional function – Water Tank control function]. (Operates regardless of the Water Tank State.) 9. [Manual mode step 9: Water Tank water draining operation] The Tank Actuator Main, Sub Valve operates in this mode (in models that have the relevant running parts), and the control time is the same as that of the Tank Actuator Main, Sub Valve in water supply action using water in the Water Tank of [Dishwasher - Additional function – Water Tank control function]. Complete the Tank Actuator Main, Sub Valve action and then wait 30 seconds to complete the operation. (Operates regardless of the Water Tank State.) Change the Tank Actuator status to Some Fill right before the Tank Actuator Valve turns On and then save to EEPROM. After completing the Tank Actuator Valve operation, change the Tank Actuator status to Empty and then save to EEPROM. 42 _ Troubleshooting...
  • Page 45 Related Item Symptoms Description Parts Each time Hi-Temp Wash Key is pressed while "AS“ displays, it makes [SOUND_KEYPUSH] sound and changes in the following order: n1 -> n2 -> n3 -> n4 -> n5 -> n1 -> n2-> n3...changes in a loop Information Display - When Auto Key is pressed while the information display mode is on, it makes [SOUND_KEYPUSH] sound and returns to Auto Mode. When holding the following keys, the version displays alternating with "n1”: - Normal Course Key: Sub PBA Version Display n1: Version Display - Heavy Course Key: Sub PBA Touch IC SW Version Display - Express 60 Course Key: Model Option Display - Each time Normal (Europe: Eco) Key is pressed, the code on display changes in a loop starting from the last saved code: C00 -> C10 -> C20 -> C30 -> C40 -> C50 -> C60 -> C00 -> ... - Up to 7 inspection codes can be saved, any additional code overwrites the oldest code. ※ Inspection codes are saved according to [Dish Washer - Inspection Mode - Inspection Recall Mode]. n2: Inspection Code 1. Each time Heavy Key is pressed while inspection code is on display, the information about the condition which triggers Display the inspection code displays in sequence. ex: When C00 displays, it changes as follows: C00 -> C01 -> C02 -> C03 -> C04 -> C05 ->C06->... When C10 displays, it changes as follows: C10 -> C11 -> C12 -> C13 -> C14 -> C15 -> C10->... ※ CX1: X indicates the order of inspection code on display. C01: indicates the code ID which occurs most recently. 2. When the operation button is held for 7 seconds with the inspection code on display, it clears all the inspection code data. n3: Smart Install It determines based on the data saved in EEPROM. Auto - Smart Install Auto Mode is successfully completed: it is indicated by "OK" Mode Result Display - Smart Install Auto Mode is not successfully completed or not performed: it is indicated by "nG" n4: Operation Cycle - The max. value is 9999 and it does not go any higher. Display - When the finishing session is entered, Cycle Cnt increases unless Cancel & Drain has been enabled. Troubleshooting_43...
  • Page 46 Related Item Symptoms Description Parts 1) If Dry+ (or Sanitize) option is set to On by default, it indicates as "d1”. 2) If Dry+ (or Sanitize) option is not set to On by default, it indicates as "d0“. 1. To set Dry+ (Sanitize) option to On by default, use the Dry+ (Sanitize) option button to switch it On/Off [n5: Setting Dry Increase Option by Default mode only]. - When Dry+ (Sanitize) button is pressed, Dry+ (Sanitize) is set to On or Off by default. ※ For models without Dry+, the Sanitize button can be used to set the Sanitize option to On by default. N5: Setting Dry Increase Option by [note] About This Option Default This option is designed to increase the drying performance by default in case there are consumer complaints. - If Dry+ (Sanitize) option can be set to On by default, it powers on and sets the Dry+ (Sanitize) option to On by default. - If the course does not support Dry+ (Sanitize) option setting, it is not set to On by default. - Even if the course is completed without using Dry+ (Sanitize) option, the last used course is set to On by the course save feature on its next power-on and Dry+ (Sanitize) option is set automatically depending on the default setting as long as Dry+ (Sanitize) option is set to On by default. - Even if Dry+ (Sanitize) option is automatically set by the default setting, it can be switched On/Off by pressing Dry+ (Sanitize) Key. 44 _ Troubleshooting...

  • Page 47: Cycle Chart

    4-3. Cycle chart Last Rinse Cycle Pre-wash1 Pre-wash2 Pre-wash3 Main wash Rinse 1 Rinse 2 Rinse 3 Dry (min.) Water[gal(ℓ)] Time (min.) [Sanitize] ● ● 136 – 154 °F 4.9 – 8.4 Auto ● ● 131 – 145 °F ● ○ ○ ● 125 - 164 (58 – 68 ℃) (18.4 – 31.9) (55 – 63 ℃) [163 °F (73 ℃)] ●...
  • Page 48 Check type Check code Checking method Corrective actions High 1. Check the hot water connections for the Inlet Valve. - See the “Temperature Sensor Check”. Temperature 2. Check the operation of the Thermistor. - See the “Heater Check”. Heating Check Check whether there is any trace of water leakage in the shutter. - Faulty: Check the leakage location. Replace the faulty part. Leakage Check - Normal: Replace the Main PBA assy. � Normal: No water leakage trace 1. Check the connections for the Thermistor Temperature - Reconnect the Thermistor(or Assy Sensor ECS) connector. Sensor Check (or Assy Sensor ECS) connector. 2. Check whether the Thermistor(or Assy Sensor ECS) is operating normally. - Measure the voltage between both ends of the Thermistor(or Assy Sensor ECS). � Normal: 0.2 to 4.5V - Measure the resistance between both ends of the thermistor :Remove the connector before measuring. (DMT800/610/400/350, DW7933, DW80J3020, DW80K3021) - Measure the voltage between number 2 and 4 in the - Faulty: Replace the Thermistor(or Assy Sensor ECS). connector with power. (DW80F800, DW80F600) -Normal: Replace the Main PBA assy. [Senser ECS] See the Table right THERMISTOR TABLE Resistance Resistance Resistance (kΩ) Current (Vdc) (kΩ)
  • Page 49 Check type Check code Checking method Corrective actions 1. Check the connections for the power cable. - Reconnect the power cable. 2. Check the voltage of the power outlet. - Connect to a 120V power source. � Normal: AC 120V 3. Check the wires of the Main PBA power part. - Faulty: Check and replace the wires of the power part. - Check voltage - Measure the voltage between the black wire and the white wire of CN101. � Normal: AC 120V Power Check None 4. Check the DC voltage of the Main PBA. - See “Main PBA DC voltage Check”. Check the DC voltage of the Main PBA. - Faulty: Replace the Main-PBA Assy. - Measure the voltage between pin 4 (orange) of the main PBA CN302 connector and - Check voltage (4.5V~5.5V) pin 6 (brown) of the CN301 connector. � Normal: 4.5V to 5.5V - Measure the voltage between pin 9 (blue) of the main PBA CN301 connector and pin 11 (blue) of the CN301connector. � Normal (Power Key On): 9.5V to 12.5V � Normal (Power Key Off): 5.5V to 7.0V Main-PBA DC None Voltage Check - Check voltage (9.5V~12.5V or 5.5V~7.0V) Troubleshooting_47...
  • Page 50 Check type Check code Checking method Corrective actions 1. Check the connections for the Circulation Motor connector. - Reconnect the Circulation Motor connector. 2. Check the connections for the Circulation Motor. -Reconnect the Startup Condenser connector of the Circulation Motor. The nozzle does not inject None 3. Check the resistance for the Circulation Motor coil. - Faulty: Replace the Circulation Motor. water. (Remove the connector before measuring.) � Normal: Approx. 5.8 Ω 4. Check whether there is foreign material in the water passages. - Remove foreign material from the water passages. 1. Check the connections for the Door Sensing Switch - Reconnect the Door Sensing Switch connectors : Check the blue wire and the switch connected to the blue wire. � Normal (Power Key On): 9.5 to 12.5V (when the door is open) � Normal (Power Key Off): 5.5 to 7.0V (when the door is open) � Normal : <2V (when the door is closed) The Cycle does None not start. 2. Check the operation of the Door Sensing Switch. - Faulty: Replace the Door Sensing Switch. (Remove the connector before measuring.) - Normal: Replace the Main PBA assy. : Check the blue wire and the switch connected to the blue wire. � Normal: OPEN (when the door is open) � Normal: SHORT (when the door is closed) 48 _ Troubleshooting...
  • Page 51 Check type Check code Checking method Corrective actions 1. Check whether the nozzle injects water normally. - See “The nozzle does not inject water”. No Washing None 2. Check the operation of the Heater. - See “Heater Check”. 1. Check whether detergent is inserted into the dispenser. - Check whether there is detergent in the Dispenser. 2. Check the connections for the Dispenser connector. - Reconnect the Dispenser connector. 3. Check the resistance of the Dispenser. - Faulty: Replace the Dispenser. (Remove the connector before measuring.) � Normal: Approx. 2.3 kΩ Detergent is not None dispensed. 4.Check the operation of the Dispenser Relay. -Faulty: Replace the Main PBA assy. : Check the operating voltage between the white wire of the CN101 connector - Check voltage and the white black of the CN202 connector. � Normal: 120V (while operating) Troubleshooting_49...
  • Page 52 Check type Check code Checking method Corrective actions 1. Check whether Rinse Refill LED light or not. - If Rinse Refill LED light, refill rinse in Dispenser. 2. Check the wire connections for the Dry Fan Motor. - Reconnect the Dry Fan Motor connectors. 3. Check the resistance of the Dry Fan Motor coil. - Faulty: Replace the Dry Fan Motor assy. (Remove the connector before measuring.) � Normal: Approx. 150 Ω 4. Check the resistance of the Thermal Actuator. - Faulty: Replace the Thermal Actuator. (Remove the connector before measuring.) � Normal: Approx. 1.45 kΩ Dry is not None satisfied. 5.Check the operation of the Dry Fan Motor Relay - Faulty: Replace the Main PBA assy. : Check the operating voltage between the red wire of the C201 5pin - Check voltage connector and the white wire of the CN202 9pin connector. � Normal: 120V (while operating) 50 _ Troubleshooting...
  • Page 53 Check type Check code Checking method Corrective actions 6. Check the operation of the dispenser. - See “Detergent is not dispensed” Dry is not � If rinse aids are not dispensed, a dry error may occur. None satisfied. � Because the dishes are heated and heat dried during the last drying cycle, the dried state of plastic dishes may not be optimal. 1. Check the connections for the Sub PBA connector - Reconnect the Sub PBA connectors.. 2. Check the LED and Input Key - Faulty : Replace the Sub PBA. 1) Push ‘Hi-Temp Wash’ + ‘Sanitize’ + ‘Power Key’ � Normal : All LED display 2) Push ‘Normal’~’Sanitize’ � Normal : Each LED on 3) Every time you enter 'Delay Start' LED or Input None � Normal : Wash LED → Rinse LED → Dry LED ` Key Fail → Control Lock LED → Delay Start LED → Segment Dot → Rinse aid Refill LED 4) Push ‘Start’ � Normal : LED Display ‘1234’ 5) Push ‘Auto’ � Normal : Version Display 3. Check the DC voltage of the Main PBA. - See “Main PBA DC voltage error”. Troubleshooting_51...
  • Page 54 PROBLEM POSSIBLE CAUSE SOLUTION The door is not closed completely. Check that the door is latched and closed completely. No cycle is selected. Select a proper cycle. The power cable is not connected. Connect the power cable properly. Will not start. The water supply does not work. Check that the water supply valve is open. Control panel is locked. Unlock the control lock, (See user manual.) A circuit breaker is open. Reset the circuit breaker. Check that the water supply line is connected to a hot water supply. It’s taking too long with Cold water is being supplied. an operation or cycle. (Additional time is required to heat cold water.) Select a cycle according to the number and You selected an inappropriate cycle. soil level of the dishes, as directed in this manual. There are food particles remaining on dishes. Connect the water supply line to a hot water supply. The water temperature is low. (Not cleaning properly.) For best performance, the temperature of the supplied water should be 120 ˚F (49 ˚C). Low water pressure. The water pressure should be between 20 and 120 psi (140 - 830 kPa). Use a commercial dishwasher cleaner. The water is too hard. Use high-quality, fresh detergent with rinse aid. Use automatic dishwasher detergent. Dishwasher detergent was not used. We recommend a powder or gel type dishwasher detergent. Make sure large items such as cookie sheets, cutting boards, or contaners, etc. There are food Detergent remains in the dispenser.
  • Page 55 PROBLEM POSSIBLE CAUSE SOLUTION The water supplied is soft and too Underload the dishwasher and use a rinse aid to minimize this. Leaves glasses with much detergent was used. a dim polish. Aluminum dishes were included in the wash load. Remove the marks on the dishes using a low sensitivity cleaner. Leaves a yellow or brown film on This is caused by coffee and tea soils. Remove the soils using a spot cleaner. the inside of the dishwasher. Check the dispenser and add the rinse aid. There is no rinse aid in the dispenser. Use a liquid type rinse aid. Connect the water supply line to a hot water supply. The temperature of the water is low when the dishwasher is running. Use rinse aid with the Sanitize option. Does not dry dishes well. Proper loading of items can affect drying. Too many dishes have been loaded. Load your dishes as recommended. After finishing the cycle, empty the lower rack first and then the upper rack. Glasses and cups with concave bottoms hold water. This water may spill onto other items when unloading. This will prevent water dripping from the upper rack onto the dishes in the lower rack. Water was left over from an incomplete cycle. Insert detergent without loading dishes, and run the Normal cycle to clean the dishwasher. The Drain Hose is obstructed. Contact a qualified service technician to remove any obstruction from the drain hose. Has a bad odor. With the dishwasher empty and no detergent, place a glass with 8 ounces of vinegar The dishwasher is not used daily or soiled dishes are left in unit too long. upright into the lower rack, and then run a Normal cycle.
  • Page 56 PROBLEM POSSIBLE CAUSE SOLUTION The nozzle hole is clogged with food particles. Clean the nozzle hole. Does not have a smoothly The nozzle is blocked by a dish or pot After placing the dishes into the racks,rotate the nozzles by hand to check rotating nozzle. and cannot rotate. whether any of the dishes interfere with them. Water won’t Contact a qualified service technician to remove any obstruction from the pump out of the The drain is clogged. drain hose and check the drain pump operation. dishwasher. Has a bent upper rack The dishes are not loaded properly. Load your dishes as recommended. after loading dishes. 54 _ Troubleshooting...

  • Page 57: Pcb Diagram

    5. PCB DIAGRAM 5-1. MAIN PBA ► This Document can not be used without Samsung’s authorization. Location Description Location Description CN203 Connector for AC Drain Pump, Auto Door Actuator, BLDC Pump CN401 Connector for Sub Communication CN202 Connector for Lower Vane Forward, Water Valve, Dispenser, Distributor Motor, PUMP AC2 Connector for JTAG of Inverter MICOM CN201 Connector for Lower Vane Forward, Dry Actuator, Water Softner Valve, Dry Fan Motor AC, Valve Water Tank Connector for Flash Write of Inverter MICOM CN301 Connector for JTAG of Main MICOM Connector for BLDC Drain CN302 Connector for Flash Write of Main MICOM Connector for BLDC Pump CN701 Connector for BLDC Fan for Dry RY201 Source Relay CN502 RY204 BLCD Power Inrush Relay Connector for WIFI Communication CN503...
  • Page 58 MAIN PBA (CONT.) ► This Document can not be used without Samsung’s authorization. Location Description Location Description RY205 Wash Heater Relay RY210 Dry Actuator Relay RY207 Pump AC2 Relay RY211 Water Softner Valve Relay RY208 Distributor Motor Relay RY212 Dry Fan Motor AC Relay RY209 Dispenser Relay RY213 Valve Water Tank Relay SSR201 Water Valve Relay BLDC Pump U Relay SSR202 Lower Vane Forward Relay BLDC Pump V Relay SSR203 Lower Vane Backward Relay 56 _ PCB Diagram...

  • Page 59: Pcb Diagram

    5-2. PCB DIAGRAM ► This Document can not be used without Samsung’s authorization. ▶ CN505 1) OVERFLOW IN 2) GND 3) LEAKAGE IN ▶ CN503 4) GND ▶ CN401 1) HIGH PRESSURE SENSOR 5) WATER THERMISTOR ▶ CN504 2) 5V 6) SNS+5V 1) 5V 3) LOWER VANE RESET SENSOR 7) SENSOR OPTION 1 1) SNS+5V 2) GND 4) 5V 8) SNS+5V 2) DISTRIBUTOR SENSOR 3) 12V 5) SET GND 9) SNS+5V 3) TRIBIDITY RECIEVE 4) SUB RX ▶ CN701 6) 5V 10) SALT SHORTAGE SENSOR 4) TRIBIDITY TRANSMIT 5) SUB TX...
  • Page 60 PCB DIAGRAM (Cont.) ► This Document can not be used without Samsung’s authorization. ▶ CN203 ▶ CN202 ▶ CN202 ▶ CN301 ▶ CN302 1) NC 1) LOWER VANE FORWARD 1) NC 1) 5V 1) 5V 2) NC 2) NC 2) NC 2) JTAG RESET 2) RX FROM TEST 3) AC DRAIN PUMP 3) WATER VALVE 3) VALVE WATER TANK 3) nTRST 3) TX TO TEST 4) NC 4) NC 4) NC 4) TDI 4) GND 5) AUTO DOOR OPEN 5) DISPENSER 5) DRY FAN MOTOR AC 5) TDO 5) BOOT...

  • Page 61: Wiring Diagram

    6. WIRING DIAGRAM 6-1. WIRING DIAGRAM ► This Document can not be used without Samsung’s authorization. ■ Reference Information Abbreviated word Meaning Abbreviated word Meaning GRAY BLACK ORANGE VIOLET SKY BLUE PINK BLUE YELLOW YELLOW / GREEN BROWN COLORLESS WHITE Wiring Diagram _ 59...

  • Page 62: Reference

    7. REFERENCE 7-1. CHECKPOINTS AFTER SERVICE REQUEST Check the safety device Check the operation of the door lock switch. Make sure that it is locked while the dishwasher is running and that the dishwasher stops running when the door is unlocked. Use authentic Samsung replacement parts only If any part is not authenticated, replace it with an authentic Samsung replacement part. Handling wires Check if any wires are loose or too tight, if they are connected correctly, if they are well bound with tape, and if they are properly clamped. The state of screws and nuts Check if the screws and nuts are fastened correctly. Check whether they are fastened with the specified torque. Remove foreign material Check whether any foreign material such as soil, wire scraps and screws are in the dishwasher. (Check whether any foreign material is entering through the sump into the disposer.) Check for water leakage Check whether there is water leakage from the hose connector, door, case sump (drain motor, circulation motor, heater, thermistor, turbidity sensor, distributor motor), and the water supply/drain hoses.

  • Page 63: Model Number Naming Rules

    7-2. MODEL NUMBER NAMING RULES B : 2009 9 : Super Premium 9 : Super Premium S : STSS DW : Dishwasher C : 2010 8 : Premium 7 : Premium B : Black machine 7 : Superior 5 : Best W : White D : 2011 E : 2012 6 : Best...

  • Page 64: Terminology

    7-3. TERMINOLOGY Circulation Motor A motor that sucks the water remaining on the floor of the dishwasher and injects water using high pressure through the internal water passages to the top, middle and lower nozzles. Drain Pump The pump that drains the polluted water from the dishwasher generated while the dishwasher is running. Heater The heater is located on the water passages inside the dishwasher. It heats the flowing water to increase wash efficiency. Vent Fan Drains high temperature moisture out of the dishwasher during the drying cycle (drying the dishes). Flow Meter Measures the amount of supplied water by counting the pulses of the hall IC located at the next of the Inlet valve. Distributor Located at the output end of the sump inside the dishwasher. It turns the flow of the water that goes to the bottom part of the dishwasher on or off. Dispenser The location where the detergent and rinse aids are stored so they can be used by the dishwasher. The dispenser automatically supplies detergent and rinse aids to the inside of the dishwasher when they are needed. Tub Assy An internal case made of stainless steel that makes up the basic framework of the dishwasher. Sump Assy The place inside the dishwasher where water is collected. The injected water gathers here after circulation. The sump Assy is connected to the circulation motor, drain pump, and distributor motor. Tub Front Assy An internal case made of stainless steel that makes up the internal part of the front door. Base Assy A plastic part that makes up the basic bottom framework. Basket Assy The upper and lower racks where dishes can be loaded.
  • Page 65 GSPN (GLOBAL SERVICE PARTNER NETWORK) Area Web Site Eurpoe, CIS, Mideast & africa gspn1.samsungcsportal.com Asia gspn2.samsungcsportal.com North & Latin America gspn3.samsungcsportal.com China china.samsungportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2017 Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable All rights reserved. International and/or domestic law. Printed in Korea...

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