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Samsung DW80M2020US/AC Service Manual Download Page 28

Part

Figure

Description

Thermostat

※

 Reassembly is in the reverse order of the removal.

  Disassemble the Cover base.

- Refer the "Cover base" disassembly section.

1. Remove the two (2) screws from the Base.

2. Lift up the Thermostat wire connector.

3. Pull  out carefully.

Preparation: 

• 

it 

 

26 _ Disassembly and Reassembly

All manuals and user guides at all-guides.com

Summary of Contents for DW80M2020US/AC

Page 1: ...M2020US DW80R2031US Model Code DW80M2020US AA DW80M2020US AC DW80R2031US AA 1 Safety Instructions 2 Features and Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference DW80M2020US DW80R2031US All manuals and user guides at all guides com ...

Page 2: ...ons 8 3 Disassembly and Reassembly 9 3 1 Tools for Removal and Reassembly 9 3 2 Standard Disassembly Drawings 10 4 Troubleshooting 27 4 1 Preparation 27 4 2 Service Inspection Mode 31 5 PCB Diagram 43 5 1 MAIN PBA 43 5 2 MAIN PBA 44 5 3 PCB Diagram 45 5 4 PCB Diagram 46 6 Wiring Diagram 47 6 1 WIRING DIAGRAM 47 7 Reference 48 7 1 Model Number Naming Rules 48 7 2 Terminology 49 All manuals and user...

Page 3: ...eaker or power cable before servicing Failure to do so may result in a risk of electric shock ࣃ ࣃ Do not allow consumers to connect several appliances to a single power outlet at the same time There is a risk of fire due to overheating ࣃ ࣃ When removing the power cord make sure to hold the power plug when pulling the plug from the outlet Failure to do so may damage the plug and result in fire or e...

Page 4: ...erminals before starting the service Failing to do so may result in a high voltage electric shock ࣃ ࣃ When replacing the heater make sure to fasten the nut after ensuring that it is inserted into the bracket heater If the nut is not fastened correctly it can cause a water leak After Servicing ࣃ ࣃ Check for any water leakage Perform a test using the standard normal cycle and check whether there is ...

Page 5: ... or object This may result in electric shock or damage to the product During Servicing ࣃ ࣃ When connecting a wiring harness make sure to seal it completely so no liquid can enter Make sure that the connections are securing by slightly pulling on them ࣃ ࣃ Check if there is any evidence that liquid has entered electric components or connections If any liquid has entered into a part replace it or com...

Page 6: ...led status of the parts They must be the same as before servicing ࣃ ࣃ Check whether the product is level with the floor and secured to the cabinet and under the counter Vibrations can shorten the life of the product All manuals and user guides at all guides com ...

Page 7: ...ed convenience The smart auto cycle determines the level of soil on the dishes and initiates the optimal cycle for cleaning Use this feature to save water energy and time Elegant design with digital touch sensors Digital touch sensors are used in the control panel for more simple operation with a touch of elegance place setting dish All manuals and user guides at all guides com ...

Page 8: ...gn Top control type Touch operation ㆍDimension W x D x H 23 3 4 x 24 5 8 x 33 3 4 in 604 x 625 x 856 mm Sales Point ㆍFlexible Style Inclined Rack System Height adjustable Upper Basket manual ㆍUpgraded Kitchen Pleasant kitchen environment Simple Modern design ㆍSmart Control Soil sensing Programming Excluding Handle 858 Open heated dry Warning The floater is an important component for dishwasher ope...

Page 9: ... Open Heated dry Vent Open Heated dry Cycles 4 4 4 4 Options 3 Delay start Sanitize Hi Temp Wash 3 Delay start Heated dry Hi Temp Wash 3 Delay start Heated dry Hi Temp Wash 3 Delay start Heated dry Steam cleaning Racking system 2 PP Rack 2 Vinyl Rack 2 Nylon Rack 2 Rack Filter Disposer Filter Filter Filter Filter Noise Level 55dB 55dB 55dB 54dB Leak Protection Available Not Available Not Available...

Page 10: ...rews for top mounting 2 screws for kick plate 1 Provided With the Dishwasher User Manual 1 Install Guide 1 90 Elbow 3 8 1 Sold separately Water Supply Line Flexible STS supply line is recommend 1 Air Gap 1 Rubber Connector 1 Strain Relief 1 Bracket For Cable tie For drainhose1 1 clamp for drain hose1 2 1 cable tie drain hose1 All manuals and user guides at all guides com ...

Page 11: ...he product Drain the water by operating the drain pump 2 Close the water supply valve 3 Turn off the power disconnect power cable 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 Caution When pulling out or laying the dishwasher down for service it may be necessary to lowe...

Page 12: ...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 Reassembly is in the reverse order of the removal Part Figure Description Main PBA Preparation Mak...

Page 13: ...ng 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 tub front They may fall into the sump assy Reassembly is in the reverse order of the removal 2 Remove the cover fan by rotating it counterclockwise Control Panel 3 Remove the four wire connectors 1 Remove the Assy con...

Page 14: ... of the removal Door outer 2 Remove the wire connector from the control panel 1 Remove the rope connector from the hinges 2 Open the door about 10 degree and pull up the outer door from the pin s 12 _ Disassembly and Reassembly All manuals and user guides at all guides com ...

Page 15: ...R Remove the two 2 screws holding the duct condenser in place Reassembly is in the reverse order of the removal 1 Remove the duct condenser from the door outer 2 Disassembly and Reassembly _ 13 All manuals and user guides at all guides com ...

Page 16: ...front with eight 8 hooks Use a flat tip screwdriver to remove it 2 it to the inside carefully Caution Be careful as the tub front is sharp Reassembly is in the reverse order of the removal Push 14 _ Disassembly and Reassembly All manuals and user guides at all guides com ...

Page 17: ... Assy Rotor Middle Remove it by rotating the holder rotor middle from Assy basket Middle 3 Assy Rotor Lower Pull out Reassembly is in the reverse order of the removal 2 Assy Sump Upper parts Filter Micro Filter Fine Filter Insert 1 Rotate the filter insert counterclockwise to unfasten and then detach the filter insert 2 Remove the filter fine 3 Remove the filter micro Disassembly and Reassembly _ ...

Page 18: ...the reverse order of the removal 1 Remove two 2 screws the from lower spray base lower spray base 2 Remove the 1 Remove four 4 screws the from cover cover Lower spray Base Cover 16 _ Disassembly and Reassembly All manuals and user guides at all guides com ...

Page 19: ...y section 1 Remove the parts which are connected with Assy sump connectors drain pump screws 2 Remove the four 4 screws 3 Pull out the Assy sump using your hands toward the outside carefully Caution Make sure to remove remaining water in the dishwasher If not water will spill on to the floor Reassembly is in the reverse order of the removal 4 Remove the wash pump Disassembly and Reassembly _ 17 Al...

Page 20: ...ion Be careful when removing the clamps cause the connecting hose is easily damaged Water remaining in the Water Inlet and will come out Lay a towel on the floor to absorb any water that may come out 3 Remove the Water Inlet by rotating counterclockwise Inlet Reassembly is in the reverse order of the removal Caution 2 Remove connecting hose connecting hose 18 _ Disassembly and Reassembly All manua...

Page 21: ...her Pull out the dishwasher carefully Remove the water supply line elbow 1 Lay the dishwasher down on its back Remove the one screw 2 Press on and pull out the four fixture hooks 3 Hold up the Base Cover and pull out 4 Remove the Leakage Sensor 5 Press on the two fixture blocks of the Leakage Sensor Cover ÿÿÿÿ ÿÿÿÿÿ Base Cover Disassembly and Reassembly _ 19 All manuals and user guides at all guid...

Page 22: ...d proof Felt 2 Pull out the two Hooks Make sure to wear gloves when removing it Be careful as the steel plate is sharp and may cut you 3 Remove the clamp by rotating Use a vice plier Be careful when removing the clamp as the connection is easily damaged 4 Release the hose from Assy Sump carefully and remove it entirely 20 _ Disassembly and Reassembly All manuals and user guides at all guides com ...

Page 23: ...ove the upper lower baskets in the dishwasher Pull out the dishwasher carefully Remove the water supply line elbow 1 Lay the dishwasher down on its back 2 Remove the Adjusting Leg by rotating counter clock wise with a needle nose pliers Preparation Make sure to disconnect the power water supply Disassembly and Reassembly _ 21 All manuals and user guides at all guides com ...

Page 24: ...d pull out the Junction Box B and PBA cover Preparation 3 Remove the two screws of Junction Box A then pull out the Rubber Ring and the Junction Box B Make sure to wear gloves when removing it Be careful as the steel plate is sharp and may cutyou 4 The guide wire is attached to the Lower Front Crosspiece with hooks Use a pair of needle nose pliers or flat screwdriver to remove them Caution 22 _ Di...

Page 25: ... 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 Thermistor Preparation 2 Release the two 2 screws of Thermistor 3 Pull carefully The Thermistor has a seal Disassemble the Cover base Refer the Cover base disassembly section 1 Remove the one 1 screws...

Page 26: ...oor The Pump drain has a seal 2 Disconnect the two 2 Pump drain connectors Sensor Turbidity Preparation Disassemble the cover base Refer the Cover base disassembly section 1 Remove the sensor turbidity connector 2 Remove the two hooks from the sensor turbidity Caution Use a flat screwdriver carefully to remove it from the Assy sump preventing breakage The sensor turbidity has a seal Reassembly is ...

Page 27: ...p Caution Make sure to remove remain water in the dishwasher If not water will spill on to the foor 4 Grab the base and pull out the motor Reassembly is in the reverse order of the removal Disassemble the cover base Refer the Cover base disassembly section 1 Disconnect the five 5 connectors from the Motor Disassembly and Reassembly _ 25 All manuals and user guides at all guides com ...

Page 28: ... the removal Disassemble the Cover base Refer the Cover base disassembly section 1 Remove the two 2 screws from the Base 2 Lift up the Thermostat wire connector 3 Pull out carefully Preparation it 26 _ Disassembly and Reassembly All manuals and user guides at all guides com ...

Page 29: ...hout retry All driving parts except for the drain part are turnedoff and draining isperformed for 120 seconds without retry All driving parts except for the drain part are turned off and draining is performed for 120 seconds without retry All driving parts except for the drain part are turned off and draining is performed for 120 seconds without retry When the non water switch doesn t work in wash...

Page 30: ...rain part are turned off and draining is performed for 120 seconds without retry All driving parts except for the drain part are turned off and draining is performed for 120 seconds without retry The main PBA or sub PBA is out of order The communications connection for the main PBA or sub PBA is not properly connected The touch button is out of order An object is on the touch button The Thermistor...

Page 31: ...Resolution by symptom When water supply is not working Troubleshooting_29 All manuals and user guides at all guides com ...

Page 32: ...Resolution by symptom When heater is not working 30 _ Troubleshooting All manuals and user guides at all guides com ...

Page 33: ...Normal Express LED will be on and Heavy LED will be off The other 1s for displaying main code version Auto Normal LED will be off Express Heavy LED will be on During this time if the door is opened The main board code and main code version will alternate display in 1Hz 5 Auto Mode STEP 01 check water inlet valve fan 1 Turn on the fan and turn off it after 10 seconds 2 Turn on the water inlet valve...

Page 34: ...en turn off it 2 Turn on dispenser for 45 seconds then turn off it 8 Auto Mode STEP 04 stop 30 seconds 9 Auto Mode STEP 05 check drain 1 Turn on the drain for 30 seconds then turn off it 10 Auto Mode STEP 06 Test ove and check sub PBA version 1 Beep one sound and all load turn off 2 The sub board code and sun code version will alternate display in 1Hz Note sub board code Auto Normal Heavy LED will...

Page 35: ...hether they are fastened with the specified torque 5 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 6 Check for water leakage Check whether there is water leakage from the hose connector door case sump drain motor circulation motor heater thermisto...

Page 36: ...en the Rinse Aid is empty wash time and Last Rinse temperature can increase a little Cycle Pre wash1 Pre wash2 Main wash Rinse1 Rinse2 Last Rinse Sanitize Dry Water gal l CycleTime min Auto 110 135 Normal 3 6 11 4 22 5 105 140 108 118 F 42 48 C 122 136 F 50 58 C 156 F 69 C Heavy 6 22 5 131 F 55 C 149 F 65 C 159 F 69 C Express 118 F 48 C 136 F 58 C 159 F 69 C Basic Optional step 4 15 1 60 118 135 F...

Page 37: ... can increase a little Auto Normal Heavy Express 60 Pre wash Main wash Rinse Hot Rinse Dry End Pre wash Main wash Rinse Hot Rinse Dry End Pre wash Main wash Rinse Hot Rinse Dry End Pre wash Main wash Rinse Hot Rinse Dry End Main wash 118 126 48 52 108 126 42 52 131 55 126 52 136 144 59 62 136 144 59 62 149 65 136 58 3 6 11 8 22 7 3 6 11 8 22 7 7 3 27 4 4 15 3 109 143 119 144 162 60 Delay Start O O...

Page 38: ... PBA assy D12 Reconnect the Thermistor connector Check the connections for the Thermistor connector Reconnect the Thermistor connector 60 60 Check whether the Thermistor is operating normally Measure the voltage between both ends of the Thermistor Normal 0 2 to 4 5V Measure the resistance between both ends of the thermistor Remove the connector before measuring See the Table right Faulty Replace t...

Page 39: ... Measure the voltage between the of CN01 Normal AC 120V Faulty Check and replace the wires of the power part Check voltage 4 Check the DC voltage of the Main PBA See Main PBA DC voltage Check Main PBA DC Voltage Check None Check the DC voltage of the Main PBA Measure the voltage between pin 1 PINK and pin 3 BLUE of the main PBA CN6 connector Normal Door Close 0V Normal Door Open 11 4V to 12 6V Che...

Page 40: ...The Cycle does not start None Normal SHORT when the door is closed No Washing None 1 Check whether the nozzle injects water normally See The nozzle does not inject water Faulty Replace the Circulation Motor Normal Approx 26 0 Ω Check the operation of the Door Sensing Switch Remove the connector before measuring Check the switch terminal both ends Normal OPEN when the door is open Normal SHORT when...

Page 41: ...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 Measure the resistance between pin 1 pink and pin 2 gray of the main PBA CN6 connector Remove the connector before measuring Normal Approx 16 Faulty Replace the Dispenser Ω All manuals and user guides at all guides com ...

Page 42: ...between 20 and 120 psi 140 830 kPa There are food particles remaining on dishes Not cleaning properly The water is too hard Use a commercial dishwasher cleaner Use high quality fresh detergent with rinse aid Dishwasher detergent was not used Detergent remains in the dispenser Make sure large items such as cookie sheets cutting boards or contaners etc are not blocking the detergent dispenser and pr...

Page 43: ...upper rack onto the dishes in the lower rack Has a bad odor 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 The dishwasher is not used daily or soiled dishes are left in unit too long With the dishwas...

Page 44: ...dishes into the racks rotate the nozzles by hand to check whether any of the dishes interfere with them Water won t pump out of the dishwasher The drain is clogged Contact a qualified service technician to remove any obstruction from the drain hose and check the drain pump operation Has a bent upper rack after loading dishes The dishes are not loaded properly Load your dishes as recommended All ma...

Page 45: ...tor for heater 4 P02 Connector for heater 5 CN6 Connector for door switch dispenser 6 CN5 Connector for door switch water valve 7 CN2 Connector for sub PCBA 8 CN3 Sensing connector refer to next page for details 9 CN4 Sensing connector refer to next page for details 10 CN10 Connector for program 11 CN9 Connector for DC fan 12 RY1 Relay for drain motor 13 RY2 Relay for washing motor 14 RY6 Relay fo...

Page 46: ... This Document can not be used without Samsung s authorization 5 3 PCB Diagram PCB Diagram _ 44 All manuals and user guides at all guides com ...

Page 47: ...Wiring Diagram _45 6 Wiring Diagram 6 1 WIRING DIAGRAM This Document can not be used without Samsung s authorization All manuals and user guides at all guides com ...

Page 48: ...7 0 2 0 0 Basic 1 Exclusive S U S STSS B Black W White V Sliver A ALF G Black Caviar U Built Under B Fully Built In S Semi Built In F Free Standing C Counter top 80 80 Tall 24 Tall 60 Standard 24 50 Slim 18 30 Counter Top 9 Super Premium 8 Premium 7 Superior 6 Best 5 Better 4 Best 18 only 3 Good 2 Value 9 Chef collection 5 Linear 0 Rotary N 2018 1 Entry R 2019 All manuals and user guides at all gu...

Page 49: ...rinse aids to the inside of the dishwasher when they are needed 6 Tub Assy An internal case made of stainless steel that makes up the basic framework of the dishwasher 7 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 8 Tub Front Assy An internal...

Page 50: ...ica 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 Any unauthorized use of Manual can be punished under applicable International and or domestic law All manuals and user guides at all guides com ...

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