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Samsung DW80M9 Series Service Manual

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SERVICE
DISHWASHER
DISHWASHER
Model Name : DW80M9*** Series
Model Code : DW80M9960US/AA
DW80M9550US/AA
DW80M9960UG/AA
DW80M9550UG/AA
DW80M9960US/AC
DW80M9960UG/AC
DW80M9550US/AC
DW80M9990US/AA
DW80M9990UM/AA
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 DW80M9 Series

  • Page 1 DISHWASHER Model Name : DW80M9*** Series Model Code : DW80M9960US/AA DW80M9550US/AA DW80M9960UG/AA DW80M9550UG/AA DW80M9960US/AC DW80M9960UG/AC DW80M9550US/AC DW80M9990US/AA DW80M9990UM/AA SERVICE Manual DISHWASHER CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7.
  • 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.
  • Page 4 While Servicing Check if the power cable is damaged, flattened, cut or otherwise degraded. ࣃ - If 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...
  • 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...
  • 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 New Waterwall cleaning system gets dishes sparkling everytime • High pressure, consistent wall of water cleans hard to reach places Waterwall linear wash system • No need to pre-rinse • Available on full or half cycle Targeted wash for hard to clean pots and pans Target zone washing •...
  • Page 8: Specifications

    2-2. SPECIFICATIONS Wash capacity 15 place settings Type Dishwasher Power Single-phased alternating current of 60Hz, 15A at 120V Used water pressure 20 ~ 120 psi (140 ~ 830 kPa) Wash type Waterwall Linear Wash & Rotating nozzle spray Dry type Air diffusion condensing dry system Power usage Main Pump : 96w (Waterwall operating), Heater : 1100w...
  • Page 9: Comparing Specifications With Existing Models

    2-3. COMPARING SPECIFICATIONS WITH EXISTING MODELS New model Model Model DW80M9990UM DW80F600UTS DW80M9550US/ DW80M9960US/ DW80J7550US/ DW80J9945US DW80F800UWS UW/UG /UTB/UTW Photo Design Specifications Silver/Black/ Silver/Black/ Panel Control Silver/Black Silver/Black Silver/Black Silver Silver White White Control Type Touch Touch Touch Touch Touch Touch Touch Wine Rack...
  • Page 10: Options Specifications

    2-4. OPTIONS SPECIFICATIONS Photo Item Code Remarks Provided ASSY PACKING PARTS DD98-01019A with the dishwasher 90 ▫ FITTING (3/4”) 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 Type Remarks 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 10mm Heater bracket Nut...
  • 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.
  • Page 13 Part Figure Description Preparation: • Make sure to disconnect the power. 1. Find Main PBA case below the door. 2. Remove two screws on the left and right. 3. Remove the cover from the Main PBA. Main PBA 4. Remove the all wire connectors from Main PBA.
  • 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 to prevent losing screws. Before removing the parts, place a cushioned mat on the floor to prevent the parts from being scratched.
  • Page 15 Part Figure Description Preparation: • Disassemble the Assy door outer. 1. Remove the two (2) screws from Assy Door outer. 2. Remove Sub PCB from panel control. There is two hooks. Panel control 3. Remove the Buzzer. 4. WIFI Module is fixed to the panel control with hook.
  • Page 16 Part Figure Description Preparation: • Disassemble the door outer. - Refer to the “door outer” disassembly section to separate the door outer. 1. Remove the two(2) connectors from the dispenser. Caution Be careful not to break them during disassembly. Dispenser - slide 2.
  • Page 17 Part Figure Description 1. Remove the two(2) screws holding the trim- up to the assy-tub. 2. Check and separate 2 hook of trim. 3. Separate two wire connector. Lever door Assy cover door switch Assy condenser 4. If you want to separate the Lever door from Assy tub, remove the screw labelled ①...
  • Page 18 Part Figure Description 1. Remove Holder-tub light by rotating. (counterclockwise) Assy Lamp LED (for DW80M9990 Series) 2. Pull the Assy lamp LED to inside of tub. 16 _ Disassembly and Reassembly...
  • Page 19 Part Figure Description 1. Drain hose 2. Drain pump out 3. Assy guide water-sub Preparation: • Make sure to disconnect the power, water supply, Assy Case Brake and drain hose connections. • Remove the upper, lower baskets and 3rd rack in the dishwasher.
  • Page 20 Part Figure Description 4. Separate connection parts in red circle from tub and pull out the Case brake by lifting up the hook in red square. Assy Case Brake 4. Loosen the three (3) clamps and release the three (3) hoses from the Assy case brake. 3.
  • Page 21 Part Figure Description 1. Disassemble two fixed screw. Water valve 2. Pull out the Water valve, Disassembly and Reassembly _ 19...
  • Page 22 Part Figure Description Preparation: • Make sure to disconnect the power, water supply, and drain hose connection and remove the water in each nozzle. • Remove the upper, lower baskets and 3rd rack in the dish washer. Assy duct main •...
  • Page 23 Part Figure Description Preparation: • Disasssemble the Assy rail. - Refer to the “Assy rail” disassembly section to separate Assy rail. 1. Separate 3 screw shown with red arrow. 2. Lift up the front parts of Housing carefully like the picture and be careful of the hook on the back side Assy guide water of the Cover nozzle.
  • Page 24 Part Figure Description Preparation: • Disasssemble the Assy rail. - Refer to the “Assy rail” disassembly section to separate Assy rail. Motor AC drive 1. Remove one (1) screw. 2. Remove Motor AC drive Preparation: • Disassemble the Motor AC drive. - Refer to the “Motor AC drive”...
  • Page 25 Part Figure Description Preparation: • Remove the lower basket in the dishwasher. • Make sure to remove the water in each nozzle. Upper nozzle / 1. Upper Nozzle : Remove it by rotating the holder. Lower nozzle (counterclockwise) 2. Middle Nozzle : Remove it by rotating the holder from upper basket.
  • Page 26 Part Figure Description Preparation: • Make sure to disconnect the power, water supply, and drain hose connections. • Remove the upper, lower and 3rd baskets in the dishwasher. • Pull out the dishwasher carefully. 1. Lay the dishwasher down on its back. Release the one(1) screw securing the base and cover base in place.
  • Page 27 Part Figure Description Preparation: • Disassemble the housing-left & right. - Refer to the “Assy Case Brake” disassembly section to separate housing left & right until step 2. 1. Remove the spring etc door front the assy-base by using a needle nose pliers. Use a tool such as a needle nose pliers.
  • 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. •...
  • Page 29 Part Figure Description Preparation : • Make sure to disconnect the power, water supply. • Remove the Upper & Lower, 3rd baskets in the dishwasher. • Pull out the dishwasher then lay the dishwasher down on its back. ① • Remove the Assy cover base.
  • Page 30 Part Figure Description Preparation : • Make sure to disconnect the power, water supply. • Remove the Upper & Lower, 3rd baskets in the dishwasher. • Pull out the dishwasher then lay the dishwasher down on its back. • Remove the Housing left. - Refer to the “Assy Case Brake”...
  • Page 31 Part Figure Description Preparation: • Remove the Assy cover base. - Refer to the “Assy cover base” disassembly section to separate Assy cover base until step 2. • Remove the Plate back. - Refer to the “Assy motor holder” disassembly section to separate Plate back until step 2.
  • Page 32 Part Figure Description Preparation: • Disassemble the housing L/R and assy-case brake. - Refer to each disassembly section. 1. Remove the two(2) screws on the plate base both- sides. (in Red circle) Assy Base 2. Carefully lay the dishwasher down on its back. 3.
  • Page 33 Part Figure Description Preparation: • Remove the Assy cover base. - Refer to the “Assy cover base” disassembly section to separate Assy cover base until step 2. Drain pump 1. Disconnect the wire connector. 2. Push the locking hook like the red box. 3.
  • Page 34 Part Figure Description Preparation: ▪ Remove the Assy cover base. - Refer to the “Assy cover base” disassembly section to separate Assy cover base until step 2. ▪ Remove the case gear. - Refer to the “Case gear etc” disassembly section to separate Assy cover base until step 3.
  • Page 35: Checkpoints After Finishing Service

    2. Use authentic Samsung replacement parts only If any part is not authentic, replace it with an authentic Samsung replacement part. 3. 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.
  • 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.
  • Page 37 Check Check code code When occur Symptom Possible Causes Display Recall - The start temperature is saved 30 seconds after heating starts. Thereafter, if the temperature change is equal to or less than 4℃ - The heater is out of order. for 10 minutes, the heater relay is turned off for 1 second and - Keep going remained cycle with heater off No display...
  • Page 38 Check Check code code When occur Symptom Possible Causes Display Recall - The touch button is out of order. - In case the Auto Door Open device operates, When the door opening is not sensed. - Keep going remained cycle. - The sub PBA or touch button PBA is not (Auto Door Open device action retry 3 times) properly connected.
  • Page 39 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.
  • Page 40 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.
  • Page 41: Service Inspection Mode

    4-2. SERVICE INSPECTION MODE ■ SVC Test mode Related Item Symptoms Description Parts Enable Smart Install 1) Set the timer for 17h with Power On. Mode 2) Press Hi-Temp Wash Key for at least 7 seconds. Disable Smart Install - When Power Key is pressed, it is disabled with Power Off. Mode - There are Auto Mode and Manual Mode.
  • Page 42 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.
  • Page 43 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.
  • Page 44 Related Item Symptoms Description Parts ※ 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.) ※...
  • Page 45 Related Item Symptoms Description Parts When holding the following keys, the version displays alternating with "n1”: - Normal Course Key: Sub PBA Version Display - Heavy Course Key: Sub PBA Touch IC SW Version Display n1: Version Display - Delicate Course Key: Model Option Display - Express (Quick) Key: Inverter PBA SW Version Display - Rinse Key: WiFi Module Version Display (Only for WiFi models;...
  • 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].
  • Page 47: Check Code Trouble Shooting

    4-3. CHECK CODE TROUBLE SHOOTING Check type Check code Checking method Corrective actions 1. Check whether the faucet is open. - Open the faucet. 2. Check whether the water supply has been cut off. - After wait until the water supply resumes and turn off the power. - After the water supply resumes, turn on the power.
  • Page 48 Check type Check code Checking method Corrective actions 1. Check whether there is any foreign material in the Drain Hose and Drain - Remove the foreign material in the Drain Hose and Drain Pump. Pump. 2. Check the connections for the Drain Pump connector. - Reconnect the Drain Pump connector.
  • Page 49 Check type Check code Checking method Corrective actions 1. Check the connections of the Heater connectors. - Reconnect the Heater connectors. 2. Check the resistance between both ends of the Heater. - Faulty: Replace the Heater. : Check the resistance between both ends of the Heater directly, or check the resistance between the red wire of the Heater Relay and the black and yellow wires of the Power Relay, respectively.
  • Page 50 Check type Check code Checking method Corrective actions 1. Check the connections for the Distributor Motor and Micro Switch - Reconnect the Distributor Motor and Micro connectors. Switch connectors. 2. Check whether the coil in Distributor Motor is conductive. - Faulty: Replace the Distributor Motor. : Remove the connectors before measuring.
  • Page 51 Check type Check code Checking method Corrective actions 1. Check the connections for the Motor vane and Sensor vane connectors. - Reconnect the Distributor Motor and Micro Switch connectors. 2. Check whether the coil in Motor vane is conductive. - Faulty: Replace the Motor vane. Check the resistance between the Red and Black wire(CCW) Check the resistance between the White and Black wire(CW).
  • Page 52 Check type Check code Checking method Corrective actions 1. Check the connections for the Thermistor connector - Reconnect the Thermistor connector. 2. Check whether the Thermistor is operating normally. - Faulty: Replace the Thermistor. - Measure the voltage between both ends of the Thermistor. - Normal: Replace the Main PBA Assy.
  • Page 53 Check type Check code Checking method Corrective actions 1. Check the connections for the power plug. - Reconnect the power plug. 2. Check the voltage of the power outlet. - Connect to a 120V power source. ► Normal : 120V 3.
  • Page 54 Check type Check code Checking method Corrective actions 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.
  • Page 55 Check type Check code Checking method Corrective actions 1. Check the connections for the Power Relay connector - Reconnect the Power Relay. : Start the cycle by pressing the Power key. when measure the operating voltage between the wires of the Power Relay and pin 1 wires of the CN101.
  • Page 56: Pcb Diagram

    5. PCB DIAGRAM 5-1. MAIN PCB ► This Document can not be used without Samsung’s authorization. Location Description Location Description CN101 Connector for PBA AC input power RY401 Auto Door Relay CN901 Connector for BLDC Pump RY403 AC Drain Pump Relay CN902 Connector for BLDC Drain RY404 Distributor Motor Relay CN903 Connector for Flash Write of Inverter MICOM RY405 Dispenser Relay CN904 Connector for JTAG of Inverter MICOM RY406 Dry Actuator Relay CN202 Connector for JTAG of Main MICOM RY408 AC Dry Fan Motor Relay CN201 Connector for HASS / Flash Write of Main MICOM RY407 Water Softer Relay...
  • Page 57: Pcb Diagram

    ▶ CN503 5-2. PCB DIAGRAM 1) OVERFLOW IN 2) LEAKAGE IN ► This Document can not be used without Samsung’s authorization. ▶ CN501 3) GND ▶ CN802 1) SENSOR OPTION 1 4) WATER THERMISTOR 1) 5V 5) SNS+5V 2) 5V 2) GND 3) LOWER VANE RESET SENSOR 6) INDOOR LED 3) 12V 4) DISTRIBUTOR SENSOR 7) 12V 4) SUB RX ▶ CN801 5) TURMIDITY RECIEVE 8) SNS+5V 5) SUB TX 1) WIFI RX 9) SALT SHORTAGE SENSOR 6) TURBIDITY TRANSMIT ▶ CN301 6) SUB RESET 2) WIFI TX 7) 5V 10) GND...
  • Page 58: 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 88 SEGMENT TOUCH KEY POCKET LIGHT BUZZER SMART CONTROL LED...
  • Page 59 CN801 CN503 CN501 CN802 CN301 Wiring Diagram _ 57...
  • Page 60: Reference

    7. REFERENCE 7-1. MODEL NUMBER NAMING RULES B : 2009 9 : Premium 9 : Luxury S : STSS DW : Dishwasher C : 2010 7 : Best 7 : Chef or Plus B : Black machine D : 2011 5 : Better 6 : Premium Plus W : White...
  • Page 61: Terminology

    7-2. 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.
  • Page 62 North & Latin America gspn3.samsungcsportal.com China china.samsungportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2018 Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable All rights reserved. International and/or domestic law.