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Whirlpool DU805DWG Dishwasher

1. SENSE MAIN WINDING RESISTOR 2 0 3 40 GY DRAIN WINDING 42 100 PUMP amp MOTOR ASSEMBLY MODEL PART NO 01990 019801 3379341 09940 _ 9743203 00920 DP920 STRIP CIRCUITS AIR DRY SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ 5 BK TCO r 3316359 SWITCH 98 C 208 F 3369325 P8 ELECTRONIC CONTROL 8051136 TRIACS AND RELAYS SHOWN x POTS 7 PANS 89 20 SOIL SENSED HEAVY 84 20 SOIL SENSED NORMAL SOIL SENSED 79 50 SENSED 69 40 _ LOW ENERGY 66 40 SOIL SENSED 79 50 CHINA CRYSTAL 66 40 SOIL SENSED f QUICK WASH 26 30 x EENE 1 RINSE ONLY 18 30 _ SOIL SENSED _ POWERSCOUR HIGH TEMP WASH 5 ______ o abans SSCS WATERHEATING O SANICOMPLETE NOTE gt cia j MOTOR TSC _ _ DRAIN U DETERGENTDISPENSER Cd WETTING AGENT DISPENSER vent CSCS REFERENCE NOTES NORMAL CYCLE TIMES POTS amp PANS CYCLE TIMES DOOR SWITCH 3369325 USER INTERFACE MODEL NO 00990
2. 50 Technical Information 51 SECTION FOUR Installation Considerations Custom Door Panel 55 Floor 59 This Service Manual is accompanied by a companion video presentation SERVICING AND TROUBLESHOOTING 1998 DISHWSHERS Part No 4322329 NOTES Section One DURAWASH MODELS WITH SOIL SETTLER AND TELESCOPING TOWER THEORY OF OPERATION Console Configuration DU800DWG DU801DWG DU805 Le T Li Special Feature Soil Settler This model is equipped with a soil settler system The inlet to the soil settler funnel is located to the right and just behind the lower spray arm assembly Fig 1 1 Since this inlet is located in an area that is relatively free of water turbulence food particles washed from the dishes can collect in this area and fall through the funnel and accumulate in the collector Fig 1 2 Food particles continue to collect as long as the dishwasher is in the Wash mode HOSE Fig 1 2 When the Wash cycle is finished the dishwasher will reverse the direction of the motor and enter the Drain mode Water is pumped into the port at the bottom of the soil collector during the Drain cycle causing the ball in the collector to rise against the opening in the bottom of the funnel Water flows
3. a PUSHBUTTON OPEN SWITCH CLOSED 1 ol IS ILIGHT 10 4 X PS AIRDRY H H d ASYANA ANdIAd1d 9934139 178 SNVd 9 SLO HSVM NOLLONNA 221 rm Ad PHE 1500 S DELAY 6 STEPS PERE EEE EEE 2 26 00 5 1 4 4 04 4 502 gt pt pt 1500 e P TRANSITION STEP x gt DELAY 1 20 STEP DELAY 1 20 STEP EF a 5 5 m H WASH 5 20 1141 H 1 1700 2 54 209 559 TT 6 00 gt gt DRAN reco gt lt lt 24 WASH 26 40 DRAIN RINSE 13 20 Soe 5 OFF OFF tes 1 1625 23 Wiring Diagram _ TIMER Model DU890DWG LINE 120 V 60 HZ T o rl BK 2 51 14 DOOR SWITCH DOOR SWITCH GROUND wey TIMER MOTOR Pg WIBU PB SW SEL B P R WIR WIR OR WN H THERMAL FUSE HEATER NOT RESETTABLE ELEMENT YIR 4 BRW _ WIV FILL VALVE OVERFILL SWITCH DRAIN WASH Y DRIVE MOTOR IV L TBU
4. Water is pumped from the tub carrying soils from the separator into the drain sump of the pump Fig 3 2 5 Soiled water is pumped out of the dishwasher through the check valve and drain hose Fig 3 3 Fig 3 3 COMPONENT ACCESS Servicing the Vertical Water Tube The vertical water tube in these models delivers water to the spray arm mounted underneath the upper dish rack and a smaller spray arm mounted at the top of the dishwasher tub Fig 3 4 If the pump and motor assembly must be removed for servicing the vertical water tube must be disconnected from the pump cover as follows 1 Remove the upper dish rack Securing Tab 2 Dislodge the upper portion of the Fig 3 4 vertical water tube from the plastic knob on the back of tub by pressing down on the nozzle Fig 3 5 3 Pull the securing tabs of the clamp holding the internal water feed tube to the pump PUSH outlet nozzle and remove the clamp Fig 3 6 DOWN ON NOZZLE 4 Rotate the lower end of the tube either left or right off the pump nozzle Fig 3 7 Fig 3 5 Securing Clamp Securing Internal Tab Water Tube Fig 3 6 NOTE Do not pull the vertical water tube forward or up in an attempt to remove it from the pump nozzle The smaller spray arm at the top of the tub does not need to be removed to service
5. Whirlp CONSUMER SERVICES TECHNICAL KD 10 1998 DISHWASHERS Servicing and Troubleshooting MODELS DU800DWG DU801DWG DU805DWG DU810DWG DP8 amp 40DWG DU840DWG DU8S0DWG DU890DWG DU910PFG 0 920 DU92Z0PFG GU940SCG GU960SCG GU980SCG JOB AID aire IG a 22 20 INTRODUCTION This Job Aid 1998 DISHWASHERS Servicing and Troubleshooting Part No 4322430 provides specific information for the installation service and repair of 1998 Whirlpool Dishwashers 1998 DISHWASHERS Servicing and Troubleshooting has been compiled to provide the most re cent information on design features troubleshooting service and repair procedures GOALS AND OBJECTIVES The goal of this Job Aid is to provide detailed information that will enable the service technician to properly diagnose malfunctions and repair the 1998 lineup of Dishwashers The objectives of the Job are The service technician will e Understand proper safety precautions Successfully troubleshoot and diagnose malfunction Successfully perform necessary repairs Successfully return the dishwasher to proper operational status Wh irlpdol CORPORATION WHIRLPOOL CORPORATION ASSUMES NO RESPONSIBILITY FOR ANY REPAIRS MADE ON OUR PRODUCTS BY ANYONE OTHER THAN AUTHORIZED SERVICE TECHNICI
6. rn m m gt m ET ron 193 EJE 0 gt a Y BU WBU WBU Z 1600 gt 1 1 1 222 40 725 33 F 1111 725 gt WASHIRINSE 2 40 1 1725 NSE 6 00 gt gt 1 11 FILL _________ WASH 5 20 TL a T L 5 a F 211111 F E WASH 26 40 lt 37 14 1650 2 11413 5 00 2 RINSE 13 20 TRE T fas 5 8 70 450 DRY 30 40 12 00 DELAY GRAPHICS TIMER OFF OFF 21 Wiring Diagram Model DU850DWG LINE 120 V 60 HZ BK Boor SWITCH G DOOR SWITCH CABINET GROUND WIBU TIMER MOTOR W BU SW SEL B P WR WR WNN l H HEATER 20 12 THERMAL FUSE NOT RESETTABLE ELEMENT BRW FILL VALVE OVERFILL SWITCH DRAIN WASH DRIVE MOTOR Tee Iv L TBUW MOTOR START RELAY SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 22 Cycle Timing Chart LNADV LIM 2 m 2 m m eee Heee
7. 25 C 13 13K Q 140 F 60 135 F OPERATING THERMOSTAT USED 00980 DU990 MODELS KA THERMOSTAT IN 9743158 ALL OTHER MODELS USE I PLACE OF THERMISTOR STRIP CIRCUITS FILL SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 6082 W w wey Ico DOOR DOOR 3316359 SWITCH SWITCH 98 208 3369325 3369325 8 ELECTRONIC CONTROL 8051136 TRIACS RELAYS SHOWN MODEL PART NO 00990 00980 8051133 8051127 18051460 8051124 VENT ACTUATOR 600 1800 Q 3379372 USED ONLY ON DU990 MODELS FELL VALV 695 995 OVERFILL SW 3379356 3369067 WATER HEATING SCHEMATIC SHOWN WiTH DOOR SWITCH OPEN LINE 120 60HZ ICO 3316359 SWITCH 98 208 3369325 P8 ELECTRONIC KODEL PART NO TRIACS AND 00990 00980 18051133 09900080 RELAYS SHOWN puso mw 00925 00920 09920 04925 00920 0 920 HEATER H1 LIMIT THERMOSTAT 800 500 OPENS 77 C 83 C 15 30 Q F 181 f 3379486 3371618 USED ONLY ON DU990 MODELS SENSE RESISTOR ASSEMBLY PART NO 00990 00980 3379341 00940 9743203 00929 0925 00920 0 92012743201 THERMISTOR OPERATING THERMOSTAT 141 53 0 0 25C 1T f CLOSES 57 63 12 13 60C 140 F 135 145 ALL MODELS USED ON
8. OHM L MOTOR START RELAY WATER HEATING LINE 120 V 60HZ A 5 As LW DOOR SWITCH CABINET DOOR SWITCH GROUND 1 TR 221 W BK N O a 8 THERMOSTAT CLOSES 135 145 F TIMER T R W V O TIMER MOTOR 1900 2900 OHM W R W R N C THERMOSTAT Co 2 HI LIMIT HEATER BU OPENS 170 185 16 20 OHM 3 GY DRAIN 1 gt 3 BU Y WASH Y 2 BU W RUN BU W_ 2 DRIVE MOTOR gt V eo RUN 2 0 3 4 OHM WASH 4 2 7 0 OHM MOTOR START RELAY DRAN 4 2 7 0 OHM White L JL 1 1 J 1 11 Cycle Timing Charts 4 m 2 P 5 133 LNADV LAM m 0 IT gt I P 0 I 5 SSVdAG 82 2 o gt 42 61 6 9 114 VvNIHO 21 L SLNILAG 22 SlOdg AAV3H 1 3 1 3 _____ lt 11111 11 010 CIC E 5 00 25 E gt 4 ____ 5 00 gt gt 750 5 HOUR DELAY YNOH T HOLD as ae 2 TVAMAL
9. OVERFILL SW 3379336 _ 3369067 1 83793886 1 2 _ 0 GY BU BK a PRESSURE SWITCH USED 00980 AND 801 SENSE DU990 MODELS ONLY 3379365 1 THERMISTOR I 47 53K 77 F 25 C OPERATING THERMOSTAT 13 13K O 140 F 60 C 185 63 ALL OTHER MODELS USE USED ON DU980 AND 00990 MODELS K THERMOSTAT IN 9743158 PLACE OF THERMISTOR STRIP CIRCUITS FILL SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 6082 g w G Ico DOOR DOOR 3316359 SWITCH SWITCH 98 208 3369325 3369325 8 ELECTRONIC CONTROL 8051136 TRIACS RELAYS SHOWN MODEL PART NO 00990 00980 8051133 8051127 18051460 8051124 VENT ACTUATOR 600 1800 Q 3379372 USED ONLY ON DU990 MODELS FELL VALV 695 995 OVERFILL SW 3379356 3369067 WATER HEATING SCHEMATIC SHOWN WiTH DOOR SWITCH OPEN LINE 120 60HZ ICO 3376359 SWITCH 98 208 3369325 P8 ELECTRONIC MODEL PART NO TRIACS AND 00990 00980 18051133 09900080 RELAYS SHOWN puso mw 00925 00820 05920 04925 00920 0 920 HEATER H1 LIMIT THERMOSTAT 800 500 OPENS 77 C 83 C 15 30 0 3379486 3371618 USED ONLY DU990 MODELS SENSE RESISTOR ASSEMBLY PART NO 00990 00980 3379341 00940 9743203 00929
10. The sales demo cycle consists of a single 6 minute wash interval which starts at interval 1 and concludes at interval 0 To initiate the sales demo cycle press the following sequence of keys within 10 seconds High Temp Wash Air Dry High Temp Wash Air Dry High Temp Wash or Power Scour Air Dry Power Scour Air Dry Power Scour The diagnostics test cycle executes a soil sensing interval at interval 9 to test the soil sensing circuit The sensing LED is illuminated through out this sense interval If the soil sensing pressure switch is tripped at any time during this sense interval the control will immediately terminate the sense interval and proceed with the remainder of the diagnostics cycle If the time limit for this sense interval elapses without detecting soil the control simply proceeds with the remainder of the diagnostics cycle The diagnostics cycle suspends cycle timing and executes a thermal hold at interval 7 The thermal hold interval is terminated and cycle timing resumes when the water is heated to the desired set point tem perature 60 C 140 F The maximum default time limit elapses 1 hour or the cycle is manually advanced to the next interval by pressing the pots amp pans key The water heating LED is illuminated during the ther mal hold The clean LED is illuminated at the end of both the diagnostics test cycle and the sales demo cycle The clean LED can be extinguished by open ing the door or pressing
11. under the tabs at the bottom of the door frame so that the strip rests on the lower frame flange Make sure the strip seats as shown in Figure 4 2 Protruding screws should align with the notches Using the end of a flat bladed screwdriver push in on the three 3 tabs to lock the mounting strip into place unting Strip Lower Frame Flange Fig 4 2 Install the J strips by removing the protective strip from the adhesive backing and carefully positioning the J strips over the left and right door frames Fig 4 3 Peel off the protective film from the outside of the J strips after in Stalling 56 J Strip Fig 4 3 4 Tipthe custom door panel as shown in Figure 4 4 and insert the top edge into the rear chan nel at the bottom of the control panel Straighten the panel and rest the lower edge on top of the mounting strip Secure the bot tom edge of the custom panel by snapping the retainer trim strip into the slot in the mount ing strip Fig 4 6 11 Reinstall the two 2 access panel screws re IMPORTANT moved earlier to secure the access panel to Be sure the door panel is inserted the dishwasher Tighten the right screw first into the rear channel Fig 4 5 then the left Access Panel Extension Retainer Trim Strip 6 Place the access panel front side down In stall the metal access panel extension into the slot it the access panel by pushing down firmly un
12. Model DU910PFG PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING Always check wiring harness and connectors before initiating any test procedures AND DIAGNOSING PROBLEMS Disconnect electric power from the dishwasher before touching the printed circuit boards or re seating wire connectors Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connector block plugged in Resistance checks should be made on components with the electric power off and the connector blocks disconnected PROBLEM POSSIBLE CAUSES CORRECTION TEST Dishwasher does not run or stops during cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes 1 Door is not latching properly Child lock is ON Wash Cycle not set properly Household fuse blown or circuit breaker tripped Washer is not wired into a circuit with proper voltage Overflow protection float is stuck in up position Fill valve is inoperable Open timer contacts Air gap if installed is clogged Pump motor is inoperable Open timer contacts Heater element burned out Hl limit thermostat inoperable Open circuit between timer and heater 33 Check to make sure handle link is properly seated in door latch assembly Check that the door switch is opening and closing properly Turn child lock OFF Review setting Wash Cycles in t
13. WASHIRINSE 2 40 WASH 26 40 DRAIN 16 15022101 600 2825 RINSE A SS Los 9 00 39 FILL Tg 00450 29 m 51 RINSE 13 20 Bie 145 gt pt lw 1550 2 4 700 DRY 30 40 12 00 DELAY 4 90 26 F ES ES 21181 7111 550 462 GRAPHICS _ 725 2 TIMER OFF OFF lt 68 19 Wiring Diagram Models DU840DWG DP840DWG LINE 120 V 60 HZ JI BK 1 1 1 27 OVERFILL SWITCH D gt V DRIVE MOTOR MOTOR START RELAY DOOR SWITCH G DOOR SWITCH CABINET WIBU GROUND 3 W BU 27 L TIMER MOTOR 4 8 19 41 H WIR WIR OR 6 gt O HEATER THERMAL FUSE ELEMENT RESETTABLE lt BR BR W W V FILL VALVE SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 20 Cycle Timing Chart PUSHBUTTON O OPEN SWITCH CLOSED 3 5 5 4 _ 5 X 6 ____ STVAYALNI 1 304313 mi gt
14. any key During intervals 9 through 3 of the diagnostics cycle the clean LED is illuminated whenever the control detects a resistance of greater than approximately 45 K OHMS on the thermistor thermostat circuit This feature is intended to help determine whether a thermostat or thermistor is installed A thermostat with normally open contacts would trigger the clean LED until the thermostat is tripped Under normal operation the resistance of the thermistor is always less than 45 K OHMS and would not trigger the clean LED 7 The wash and drain auxiliary windings are only on when the motor is being started When the control has determined that the motor has been started satisfactorily the auxiliary winding will be turned off 8 Entering the key sequence high temp wash or power scour air dry high temp wash or power scour air dry after a cycle has started will enable the pots n pans key rapid advance feature This will allow ser vice to rapidly step to any interval of the currently running cycle Other Control Features Cancel Drain Terminates current active cycle and clears cycle selections Executes 2 minute drain upon first selection if water is likely to be left in sump Subsequent selections toggle between 2 minute drains and going to standby Control Lock The control lock LED is illuminated and all keys of the keyboard are disabled whenever the control lock feature is invoked by the customer The con
15. assem bly counterclockwise and remove it Fig 3 12 4 Remove the seal from the cap Use Special Tool Part No 303918 ora 34 socket to press over the attaching tabs in the wet agent cap opening Remove wet agent dispenser assembly Fig 3 12 6 Remove wet agent dispenser actuator by spreading the two 2 locking tabs Fig 3 13 7 Remove the actuator slide from the wet agent dispenser actuator 8 Remove the diaphragm spring and diaphragm 9 Use a screwdriver to gently release the lower tab and remove the detergent door actuator assembly As you do note the position of the door latch level through the hole in the lower slide Fig 3 14 10 Remove the detergent door latch by care fully spreading the latch snap locking tabs apart with a screwdriver while pushing firmly against the end of the door latch lever until the lever is released through the hole 11 Remove the upper slide the slide spring and the lower slide Fig 3 15 DRAWBAR SPRING Fig 3 10 WET AGENT DISPENSER DRAWBAR LOCKING TABS PANEL STOP DRAWBAR Fig 3 11 WET AGENT DISPENSER WET AGENT CAP WET AGENT DISPENSER LOCKING TARS WET AGENT WET AGENT 1 DISPENSER SPECIAL LOCKING TABS 03918 SOCKET Y L S SS 1 2 Fig 3 12 HOOK MAIN WASH DETERGENT DETERGENT DOOR LATC
16. by following the installation instructions pro vided with the unit 58 KIT CONTENTS P N 4378968 INSTALLATION INSTRUCTIONS 1 9 INSTALLING THE FLOOR MOUNTING KIT 2 P N 9743463 Brackets Fig 4 12 1 P N 4378974 Instruction Sheet Loosen the two 2 screws below the access panel and remove the two 2 screws above the access panel Fig 4 13 Carefully slide the access panel upward and off the two 2 screws below the access panel Toe Panel Access Screw 2 Screws Remove the two 2 lower screws securing the toe panel to remove the toe panel from the dish washer Position the dishwasher in its final installed position Refer to the dishwasher installation instruc tions for the proper installed position Floor Place the floor mounting brackets Ss Bracket so the top of the bracket hooks over the top of the dishwasher side brace towards the back of the unit Fig 4 14 Mark the location of the mounting holes on the floor Remove the dishwasher and drill two 2 holes on each side of the dishwasher location Position the dishwasher in its final installed position and install the floor mounting brackets and secure them in place with screws NOTE The size of the holes drilled in the floor will depend on the size of the hardware screws being used for the installation Reinstall the dishwasher by following the installation instructions provided with
17. closing by itself 1 these operation tests are failed and the dish washer is already installed under the counter remove the unit from its installed position 2 Move the lower hook on each of the standard door springs to the farthest adjustment slot to increase spring tension Repeat the Door Spring eration Tests If the operation tests again fail the heavy duty springs supplied must be used 3 Close and lock the dishwasher door Remove a spring from one side by releasing the lower hook from the adjustment slot first then disen gaging the upper hook from the door hinge bracket Fig 4 11 Fig 4 11 4 Install a heavy duty spring Insert the smaller hook through the door hinge bracket first then engage the larger hook in the first notch of the second group of adjustment slots Fig 4 17 5 Repeat steps 3 and 4 to replace the spring on the opposite side of the door 6 Open and close the door several times The door should open and close easily If the door closes too quickly decrease the spring tension by moving the lower hook of each spring one 1 notch toward the back of the dishwasher Springs should be in the same position on the left and right sides Perform the Door Operation Tests again Continue to adjust the door spring tension as necessary until the Door Operation Tests confirm proper spring adjustment 7 Install the dishwasher in the final installed position
18. door or pressing any key will turn the indicator off Note 17 Diagnostics Cycle Thermostat Thermistor Indicator The clean LED will turn on during the display test at the beginning of the cycle interval 11 and again at the conclusion of the cycle interval 2 less of what it detects on the thermistor input The clean LED will be on in intervals 1 through 8 of the cycle whenever an open resistance greater than 200K OHMS 50K OHMS is detected on the thermistor input by the control Consequently if a normally open operating thermostat were to be installed on the thermistor input the clean LED would be on throughout the cycle until the thermostat tripped e g during the thermal hold With a ther mistor installed the clean LED would only be on in intervals 10 and 0 Be cause the thermistor always has a resistance of between 50 K OHMS and 8 K OHMS under normal operating conditions Options Water Heat Forces a thermal hold to occur in the main wash regardless of soil level The set point for this thermal hold is 140 F This option is automatic with the pots and heavy cycles It is not available on china wash or rinse only cycles Sani Rinse Raises the setpoint temperature of the thermal hold in the final rinse to ap proximately 65 C 150 F This option is not available with china wash quick wash amp rinse only cycles This option is only possible on models that use a therm
19. the dishwasher from the household electrical system 2 Lay the dishwasher on its back and disconnect the wiring harness connector from the motor 3 Remove the motor support slip nut and remove the motor support Fig 1 6 MOTOR SUPPORT N SUPPORT SPLIT NUT 4 Disconnect the drain hose from the drain valve by loosening the Hex head screw on the hose clamp Fig 1 7 5 Disconnect the pump inlet hose from the pump and motor assembly Fig 1 7 6 Remove the pump and motor assembly from the bottom of the dishwasher NOTE Once the pump and mo tor assembly has been removed from the tub 12 DRAIN the pump outlet grom met can be removed PUMP INLET Nl HOSE from the inside of the tub Check the pump outlet grommet for wear or damage and replace it if necessary Fig 1 7 The motor can be removed from the pump assembly by removing the three T 20 Torx screws securing the motor to the pump assembly Fig 1 8 SCREWS 7 NOTE When reinstalling the motor make sure the keyed motor shaft lines up with the pump impel ler Servicing the Pump Assembly The pump impeller can be accessed by using an adjustable slip nut wrench to turn the disk mount assembly counterclockwise Once the disk mount assembly is removed the impeller can be removed Fig 1 9 The drain valve can be accessed by removing the four 4 T 20 Torx screws securing the drain outlet cover to th
20. the unit 10 Install the toe panel and the access panel by reversing steps 1 through 3 59 NOTES 60
21. 00925 00920 09920 3143201 THERMISTOR OPERATING THERMOSTAT 141 53 2 0 25C 1T f CLOSES 57 63 12 13 60C 140 F 135 145 ALL FILM LN MODELS USED ON DU980 AND 00990 MODELS 3 2 USE THERMOSTAT IN I L PLACE OF THERMISTOR _ 52 WASH RINSE SCHEMATIC SHOWN WITH DOOR SWITCH LINE 120 V 60HZ 5 DOOR TCO DOOR 3316359 SWITCH G SWITCH 98 C 208 F 3369325 3369325 ELECTRONIC P8 8051136 E TRIACS AND 09930 0 980 18051133 RELAYS SHOWN 00940 18051127 00929 8051460 00925 00920 0 920 18051124 VENT ACTUATOR 600 1800 2 3319372 USED ONLY ON 00990 MODELS SENSE RESISTOR PUMP 4 MOTOR ASSEMBLY MODEL PART NO 0U990 DU980 3379341 00940 _ 91743203 00929 00925 00920 07920 3143201 BU BK DUAL DISPENSER WASH WINDING 42 100 DETERGENT 600 1800 0 H OR 4501 RINSE AGENT 600 1800 Q ONLY ON DURING DISPENSE INTERVALS gt 23 USED DURING RESSURE SWITCH NSE INTERVAL SOIL USED ON 00980 AND _ 3380871 00980 MODELS DRAIN SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ T w wv DOOR G TCO DOOR 3316359 SWITCH SWITCH T 98 208 3369325 3369325 USER INTERFACE P8 ELECTRONIC 4 T
22. 00980 18051133 18051127 8051460 0 00929 ______ 0 925 00920 0 920 18051124 W V N C ITP F 181 3311618 41 40 39 3837 36 PRE WASH 1 2 10 10 MINUTES 10 10 MINUTES HEATER HI LIMIT THERMOSTAT 800 500W OPENS 110 83 15 30 3319486 35 134 33 32 31 30 Emn PRE RINSE 10 10 MINUTES 19 10 MINUTES P8 gt as sm zs MAIN WASH 5 8 14 10 MINUTES 23 10 MINUTES 40 3376359 98 208 ELECTRONIC CONTROL 8051136 TRIACS AND RELAYS SHOWN HEAT DRY SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ T5 oI w yy s DOOR SWITCH 3369325 8051133 8051127 00929 18051460 00925 00920 0 920 8051124 0 990 00980 HEATER 800 500W PTC 15 30 Q 3379486 HI LIMIT THERMOSTAT OPENS 77 C 83 C 3371618 CYCLE TIMING CHART FINAL RINSE 7 40 MINUTES 710 MINUTES 13 40 MINUTES 13 40 MINUTES ee 30 00 MINUTES CYCLE TIMING CHART NOTES Note 1 Pre Wash Sense Interval Pressure switch contact closure at any time during this interval causes the cycle to jump to interval 37 Immediately For the normal cycle the heater is off during this interval For the heavy and pots n pans cycles the heater is during this interval The p
23. ANS 1998 Whirlpool Corporation Benton Harbor MI 49022 TABLE OF CONTENTS INTRODUCTION es ocx ate adn cee dew owe Q ala TABLE OF CONTENT III SAFETY wes IV SECTION ONE DURAWASH MODELS W SOIL SETTLER AND TELESCOPING TOWER Model DU800DWG DU801DWG DU805DWG DU810DWG DP840DWG DU840DWG DU850DWG DU890DDWG Theory of Operation 1 Component Access 3 Solutions to Common 13 Troubleshooting Guide 15 Technical Information 16 SECTION TWO POWER CLEAN FILTER MODELS W TOWER WATER FEED Models DU910PFG DP920PFG DU920PFG Theory of Operation 27 Component Access 28 Troubleshooting Guide 33 Technical Information 34 SECTION THREE POWER CLEAN FILTER MODELS W INTERNAL WATER FEED Models GU940SCG GU960SCG GU980SCG Theory of Operation 43 Component Access 44 DIAGNOSTICS se eee en 49 Troubleshooting
24. BAR Fig 1 27 10 UPPER DRAWBAR Fig 1 28 WET AGENT DISPENSER ACTUATOR WET AGENT DISPENSER METERING CHAMBER LOWER CAP DRAWBAR OPENING SOCKET OR DISPENSER WET AGENT CAP WET AGENT DISPENSER ASSEMBLY WET AGENT DISPENSER _ LOCKING TABS in NS WET AGENT S SPECIAL TOOL LOCKING TABS 303918 DETERGENT DOOR ACTUATOR ASSEMBLY DETERGENT DOOR LATCH DETERGENT 1 1 DOO Sy LATCH SNAP Fig 1 37 Dishwasher Dispenser Assembly 1 10 11 12 13 Assembly the upper slide slide spring and lower slide to the detergent door actuator Fig 1 32 Pass the detergent door latch lever through the panel making sure to turn the hook of the latch toward the detergent door Snap the detergent door latch snap onto the door latch lever Fig 1 31 DETERGENT DOOR The door latch lever must pass through ACTUATOR the opening in the lower slide Press the actuator assembly into position until the upper and lower tabs engage Insert the diaphragm and diaphragm spring into the wet agent dispenser Seat the diaphragm flush with the surface of the dispenser Fig 1 30 Install the upper and lower slides into the wet agent dispenser actuator Press the wet agent dispenser actuator into position on the dispenser so the lock ing tabs engage Fig 1 32 SPRING Press the wet agent dispenser assembly into posit
25. DU980 AND 09990 MODELS 3 2 USE THERMOSTAT IN L PLACE OF THERMISTOR _ 39 WASH RINSE SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ 5 1 W s DOOR TCO DOOR _ 3376359 SWITCH G SWITCH 98 C 208 F 3369325 3369325 ELECTRONIC P8 8051136 TRIACS AND 09930 0 980 18051133 RELAYS SHOWN 00940 18051127 00929 8051460 00925 00920 0 920 18051124 VENT ACTUATOR 600 1800 2 331992 USED ONLY ON 00990 MODELS SENSE RESISTOR PUMP 4 MOTOR ASSEMBLY MODEL PART NO 0U990 DU980 3379341 099940 9743203 00929 00925 092002920 9143201 BU BK DUAL DISPENSER WASH WINDING 42 100 DETERGENT 600 1800 Q ey OR 4501 RINSE AGENT 600 1800 Q ONLY ON DURING DISPENSE INTERVALS LONE f USED DURING RESSURE SWITCH NSE INTERVAL SOIL USED 00980 AND _ 3380871 00980 MODELS DRAIN SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ T w wv 8 DOOR G TCO DOOR 3316359 SWITCH SWITCH T 98 208 3369325 3369325 USER INTERFACE P8 ELECTRONIC TRIACS AND DU990 0U980 8051133 08940 18051127 00929 8051460 0 925 00920 0 920 18051124 RELAYS SHOWN W V VENT ACTUATOR USED ONLY ON 2 0 990 MODELS
26. E MOTOR 1 0 SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 34 Strip Circuits HEAT DRY LINE 120 V 60 2 4 2 fy DOOR SWITCH CABINET GROUND DOOR SWITCH K OPEN NORMAL CYCLE TIMER MOTOR 1900 2900 OHM PB SW THERMOSTAT HI LIMIT OPENS 170 185 F NO HEAT DRY Switch H OPEN DRAIN LINE 120 V 60HZ __ wy DOOR SWITCH DOOR SWITCH CABINET GROUND TR T R W V gt O TIMER MOTOR Y BU 1900 2900 OHM W BU PB SW gt DRAIN WSH Y BU BU W RUN BU W TOA DRIVE MOTOR wv RUN 2 0 3 4 OHM Rat WASH 4 2 7 0 OHM MOTOR START RELAY LINE 120 V 60 7 A 4 W Lwy DOOR SWITCH croug DOOR T R r TIMER MOTOR gt K 1900 2900 OHM BR BR W OVERFILL SW FILL VALVE 695 995 OHM Harness Terminal Block Wire End Black BR R J ICTR V J we JIL J 0 ey 35 LINE 120 V 60HZ 5 WV T BK BK T DOOR SWITCH CABINET GROUND DOOR SWITCH T R W V WASH 4 2 7 0 OHM DRAIN 4 2 7 0 OHM Y BU gt TIMER MOTOR gt 1900 2900 LPB SW 3 50 DRAIN GY WASH 15 2 BU W RUN BU W_ lt RUN 2 0
27. ERATION Console Configuration Model DU910PFG Models DP920PFG DU920PFG Fig 2 1 POWER CLEAN FILTER Pump and Motor Operation 1 Once the tub has filled with hot water the motor begins to rotate forcing the water up through pump chamber and out through the spray arms Two spray jets on the underside of the lower spray arm direct water down onto the fine mesh screen of the pump housing to clear soils that may collect there during the wash cycle Fig 2 2 2 As water and soils return to the lower pump area the chopper blade grinds the particles into smaller sizes that then pass through the perforated plate into the upper chamber of the pump The pump impeller causes the soil ladened water to be lifted and moved to the outer edges of the pump chamber where they are forced into the separator Clean water is then forced up through the spray arms and fine mesh screen Fig 2 3 3 When the drain cycle begins the drive motor changes direction This relieves the pressure on the two check balls opening the drain system 4 Water is pumped from the tub carrying soils from the separator into the drain sump of the pump Fig 2 4 COMPONENT ACCESS INDICATOR LIGHTS TIMER DETERGENT AND RINSE AID DISPENSER ASSEMBLY HEATER PUMP AND MOTOR ASSEMBLY HI LIMIT THERMOSTAT OPERATING THERMOSTAT Attached to bottom FLOAT SWI
28. H DETERGENT DOOR LATCH SNAP LATCH SNAP LOCKING TABS ACTUATOR SLIDE WET AGENT DISPENSER ACTUATOR WET AGENT DISPENSER DIAPHRAGM SPRING 22201 LOCKING TABS Fig 3 13 DETERGENT DOOR ACTUATOR ASSEMBLY 2 Ms SLIDE 4 OPENING 8 Dishwasher Dispenser Assembly 1 10 11 Assembly the slide and slide spring to the detergent door actuator Fig 3 15 Pass the detergent door latch lever through the panel making sure to turn the hook of the latch toward the detergent door Snap the detergent door latch snap onto the door latch lever Fig 3 14 The door latch lever must pass through the opening in the lower slide Press the actuator assembly into position until the upper and lower tabs engage Insert the diaphragm and diaphragm spring into the wet agent dispenser Seat the diaphragm flush with the surface of the dispenser Fig 3 13 Press the wet agent dispenser actuator Into position on the dispenser so the lock Ing tabs engage Install the actuator slide into the wet agent dispenser actuator Press the wet agent dispenser assembly into position so the locking tabs engage the wet agent cap opening No tool is needed for assembly Fig 3 12 Install the seal on the wet agent cap Insert the wet agent cap Turn it clock wise and close it Install the drawbar by referring to the de tails in Figure 3 11 Be sure t
29. H 26 40 __ 255 gt RINSE 13 20 Ei SAMENE 4 gt gt A DRAIN 1700 4 145 542 DRY 30 40 L LL IL Egz 450 gt _ 450 29 63 EEDI 25 5 55 EERS INED 1 GRAPHICS 5 TIMER OFF OFF 17 Wiring Diagram Model DU810DWG LINE 120 V 60 HZ TIMER yI T BK BK w _ WIV DOOR SWITCH G DOOR SWITCH CABINET GROUND 3 Y BU JUMPER i FROM 8 10C wiey IN TIMER BLOCK 27 L R WR 1971 TIMER MOTOR ROCKER SWITCH WIR WIR l 6 T HEATER THERMAL FUSE ELEMENT NOT RESETTABLE BR _ A FILL VALVE OVERFILL SWITCH SY DRAIN Y WASH 8 SUN CBU DRIVE MOTOR cam 1 L MOTOR START RELAY SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 18 Cycle Timing Chart Sl1N31dG0 STVAYALNI 5 1 1 3904313 5 LN39V LAM lt FILL WASH 5 20 FILL 111 17 25 gt 84
30. In all cases the default time for this thermal hold is 20 minutes Note 6 Main Wash Recirculation Interval The power scour option increases the length of this interval to 10 00 for the pots n pans and heavy cycles Note 7 Final Rinse Thermal Hold This thermal hold is automatic for all cycles except the china wash and rinse only cycles Set Point 140 F For the china wash cycle this thermal hold only occurs if the pressure switch trips during the pre rinse Set Point 130 F In all cases the default time is 25 minutes If the sani rinse option is selected then the set point for this thermal hold becomes 150 F and the default time changes is 25 minutes Note 8 Air Dry The default status for the dry period is heat dry on Selecting the air dry option causes the heater to be turned off during this interval Note 9 China Dry Interval When the china wash cycle is selected the heater will be turned off during this interval Note 10 Option LED s When a valid option is active then the LED for the option will be on Note 11 Sani Complete LED When the sani rinse option has been selected and completed A sani com plete indicator is illuminated at the end of the cycle During a cycle in which 54 sani rinse has been selected the target thermal hold temperature for the sani rinse option must be satisfied and maintained If this condition is not satisfied because the final rins
31. LED 7 The wash and drain auxiliary windings are only on when the motor is being started When the control has determined that the motor has been started satisfactorily the auxiliary winding will be turned off 8 lt gt Entering the key sequence high temp wash or power scour air dry high temp wash or power scour air dry after a cycle has started will enable the pots n pans key rapid advance feature This will allow ser vice to rapidly step to any interval of the currently running cycle Other Control Features Cancel Drain Terminates current active cycle and clears cycle selections Executes 2 minute drain upon first selection if water is likely to be left in sump Subsequent selections toggle between 2 minute drains and going to standby Control Lock The control lock LED is illuminated and all keys of the keyboard are disabled whenever the control lock feature is invoked by the customer The control lock feature and LED can be turned on or off by the customer at any time by holding down the air dry option key for 4 seconds Delay Start Allows the customer to delay the start of a cycle by up to 6 hours Each press of the delay key increases the delay time selection by two hours The selected delay period will begin clocking down upon selecting the cycle key The cycle selected will begin automatically upon completing the delay period Error Messages Stuck Key If the control detects that a key is
32. NI WASH RINSE 10 00 lt 18 19 DRAIN I 20 FILL DET DISP WASH 16 00 7 lt 228 DRAN j ISO S Far 239 7 50 2552 RINSE 14 00 DRY 30 00 6 00 gt lt 44 5 00 22 45 1 5 00 gt 48 5 00 gt 49 5 GRAPHICS OFF TIMER OFF 53 on 750 gt 21500 1 17609959 OFF 36 TROUBLESHOOTING GUIDE Models DP920PFG amp DU920PFG PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING AND DIAGNOSING PROBLEMS Always check wiring harness and connectors before initiating any test procedures Disconnect electric power from the dishwasher before touching the printed circuit boards or re seating wire connectors Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connector block plugged in Resistance checks should be made on components with the electric power off and the connector blocks disconnected TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSES CORRECTION TEST Dishwasher does not run or 1 stops during a cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes Door is not latching properly Child lock is ON Wash Cycle not set properly Household fuse blown or circuit breaker tripped Washer is not wired into a cir
33. OL 8051136 TRIACS AND RELAYS SHOWN 8051133 8051127 00929 18051460 0 925 08920 0 920 8051124 00990 00980 800 500W 15 30 3379486 HI LIMIT THERMOSTAT OPENS 77 C 83 C 3371618 CYCLE TIMING CHART 13 40 MINUTES 13 40 MINUTES 40 MINUTES 710 MINUTES 30 00 MINUTES 30 00 MINUTES CYCLE TIMING CHART NOTES Note 1 Pre Wash Sense Interval Pressure switch contact closure at any time during this interval causes the cycle to jump to interval 37 Immediately For the normal cycle the heater is off during this interval For the heavy and pots n pans cycles the heater is during this interval The power scour option changes this interval to 16 minute heated wash interval for all 3 cycles normal heavy and pots n pans If the water temperature reaches 140 F or the thermostat closes The heater is turned off Time continues to elapse and all other output states remain the same until the prescribed interval time has elapsed Note 2 Pre Wash Thermal Hold This thermal hold is only executed during the heavy and pots n pans cycles The thermal hold setpoint is 140 F or thermostat contact closure and the de fault time is 25 minutes Pressure switch contact closure at any time during this interval causes the cycle to jump to interval 37 Immediately Note 3 Pre Rinse Sense Interval Pressure swi
34. Q Measure resistance between blue and violet contacts Turn relay upside down Measure resistance between blue and violet contacts Drive Motor Disconnect the motor wiring harness White violet to blue white meter plug from the motor connector should read 5 7Q Set meter on the scale White violet to yellow meter Connect one probe to the white violet should read 5 7Q connector White violet to gray meter Connect the other probe to the blue should read 5 7Q white connector Connect the meter probe to the yellow connector Connect the probe to the grey connector Thermal Fuse Disconnect wires connectors from the 1 Meter should read 00 thermal fuse terminals Set VOM meter to read Rx1 scale Measure resistance between thermal fuse terminals Heater Element Disconnect the wire connectors from Meter should read 25 350 the heater element terminals Set VOM meter to read Rx1 scale Measure resistance between heater element terminals Fill Valve Disconnect the wiring harness plug Meter should read approximately from the fill valve connector 700Q Set VOM meter to read Rx1 scale Measure resistance between the terminals of the fill valve Overfill Switch Disconnect the wires connectors from 1 Float DOWN meter should read the overfill switch terminals 09 Set VOM meter to read Rx1 scale Float UP meter should read Measure resistance between switc
35. RIACS AND DU990 0U980 8051133 08940 18051127 00929 8051460 00925 00920 0 920 18051124 RELAYS SHOWN VENT ACTUATOR USED ONLY ON veo 00990 MODELS SENSE MAIN WINDING RESISTOR 2 0 3 40 GY DRAIN WINDING 4 2 1 0 Q PUMP amp MOTOR ASSEMBLY MODEL NO 00990 009801 3379341 00940 _ 9743203 0 920 0 920 STRIP CIRCUITS AIR DRY SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ 1 BK TCO 3316359 SWITCH 98 C 208 F 3369325 P8 ELECTRONIC CONTROL 8051136 TRIACS AND RELAYS SHOWN x ima J _ eee POTS 7 PANS SOIL SENSED ree 89 20 HEAVY SOIL SENSED _ NORMAL __ SOIL SENSED 79 50 SENSED 69 40 ie lt ___ _____ 84 20 LOW ENERGY SOIL SENSED 79 50 56 40 CHINA CRYSTAL SOIL SENSED x j C 66 40 QUICK WASH x 26 30 RINSE ONLY __ SOIL SENSED _ _____ POWERSCOUR 0 __ HIGH TEMP WASH 10 T SANIRINSE __ 5 AIRDRY S WASHING 0 18 30 RINSING 0 abans SSCS U_ WATERHEATING SANICOMPLETE 11011101 2 WASH o DRAIN 13 E 1
36. TCH LATCH ASSEMBLY of pump housing 28 Removing the Heater Element From beneath the cabinet 1 Remove the front access panel See Removing the Outer Door Panel 2 Pull the connectors off the heater element terminals 3 Unscrew the two 2 nuts securing the heater element to the bottom of the tub Fig 2 5 From inside the tub 4 Remove the lower dish rack Fig 2 5 5 Remove the lower spray arm 6 Slide the metal disks from the metal clips securing the left and right sides of the heater element x 7 Carefully lift the heater element from the unit Replacing the Heater Element Element Retaining Nuts 2 From inside the tub 1 Carefully place the terminal ends of the heater element through the two 2 holes at the bottom rear of the cabinet 2 Slide the metal disks into the clips to secure the left and right sides of the heater element 3 Replace the lower spray arm 4 Replace the lower dish rack From underneath the cabinet 5 Secure the heater element in place with two 2 nuts Be sure the element is seated firmly against the tub 6 Slide the spade connectors onto the heater element terminals 7 Replace the front access panel Removing the Pump Motor Assembly SPRAY ARM 1 Unscrew and remove the nozzle cap and remove the nozzle bearing and spray arm Fig 2 6 NOZZLE BEARING Fig 2 6 29 2 Disconnect the wiring harness from the motor harness plug 3 Rubbe
37. W MOTOR START RELAY SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 24 Cycle Timing Chart slo HHHH cu Oo OPEN m 5 01 41 01 41 1 4 50 SWITCH X CLOSED 2 gt 512 5 51211 51 23512 2 1 IPOTSN PANS X 3 1212191815955 gt olx 4 5 2 3 INORMAL m z 2 5 4 LIGHT gt gt 2 2 m 9 a gt _ j 5 HEATDRY x 2 101 F 26 00 STEP __ 1500 gt pt pt 1500 gt TRANSITION STEP 282 2 DELAY 1 20 9 DELAY 1 20 STEP el TT 5 E 128 220 5 3 WASH 5 20 15 518 81 TE 500 SRE _ 18 71 1014 50015 51 I T I fi 55 5 450 2 1 WASHIRINSE 2 40 CTT 700 17 H M W 00 8 41 SS Ts 00 27 11 110111 50 gt lt 24 WASH 26 40 DRAIN RINSE 13 20 171111 OFF OFF ERA j j Ts L 1625 29 NOTES 26 Section Two POWER CLEAN FILTER MODELS WITH TOWER WATER FEED Models 00910 920 00920 THEORY OF OP
38. able to User Interface 98 C 208 F SWITCH 3376359 3369325 3369325 Pressure Switch Soil Sense ELECTRONIC Thermistor Thermostat T CONTROL USER INTERFACE 8051136 MODEL PART NO Detergent Dispenser TRIACS AND DU990 DU980 8051133 2 4 eee RELAYS SHOWN DU940 8051127 P2 4 BG DUET SPellse DU920 DP920 8051124 Motor Main Winding Motor Auxiliary Winding Wash Pees eR Ps 2 55 Motor Winding Drain P7 1 LBU BU Y GY HI LIMITTHERMOSTAT 900 500 W R OPENS 171 F 181 F 15 300 3371618 3579486 Switched L1 to Vent Fill Valve BU BK Dual Dispenser amp Pressure Sw Switched L1 to Motor R BK VENT ACTUATOR 1 3379372 USED ONLY ON 600 18000 DU990 Pa Switch Lto Heater W R R BK MAIN WINDING 2 0 3 40 SENSE RESISTOR DRAIN WINDING 42 700 PUMP MOTOR 3379364 WASH WINDING 42 700 DETERGENT 600 18000 DUAL DISPENSER ACTUATOR RINSE AGENT 3374501 600 1800 Q NN BR W BU BK e FILLVALVE 695 995W OVERFILL SW _ 3379336 _ 3369067 L OL OOL 0 BU BK PRESSURE SWITCH USED DU980 AND 601 SENSE DU990 MODELS ONLY 3379365 1 THERMISTOR 47 53K Q 77 F
39. cuit with proper voltage Overflow protection float is stuck in up position Fill valve is inoperable Control board is inoperable Air gap if installed is clogged Pump motor is inoperable Control board is inoperable Heater element burned out Hi limit thermostat inoperable 37 Check to make sure handle link is properly seated in door latch assembly Check that the door switch is opening and closing properly Turn child lock OFF Review setting Wash Cycles in the Use and Care Guide Have a qualified electrician check the circuit breaker or fuse Have customer call a qualified electrician Check that the overflow protection float is free to move up and down Check that the overfill switch in opening and closing properly Check for continuity between contacts on fill valve Check for 110VAC between P2 5 and P12 3 Follow air gap manufacturer s direction for cleaning Disconnect pump motor from wiring harness and check for continuity between V amp BU GY and V amp Y Check for 110VAC between P10 and P3 P10 P5 and P10 and P4 Check for continuity between the terminals of the heater element Check for 110VAC between P6 and P8 Check for continuity between terminals of the hi limit thermostat TECHNICAL INFORMATION Models DP920PFG amp DU920PFG WIRING DIAGRAM LINE 120 V 60HZ CONNECTOR PIN OUT pole Wo 7 Pin No DESCRIPTION 1 5 Ribbon C
40. e pump assembly The drain cover seal diaphragm and diaphragm ring can be removed and replaced Fig 1 10 Removing the Soil Settler Assembly 1 Disconnect the dishwasher from the household electrical system and lay the unit on its back 2 Remove the four 4 Hex head screws securing the soil settler assembly to the tub 3 Disconnect the two 2 hoses from the soil settler collector 4 Remove the funnel and funnel grate check valve ball and seal from the soil settler collector Fig 1 11 Funnel GRATE we CHECK VALVE BALL CLAMPS o HOSE 2 Fig 1 11 Removing the Heater Element 1 Disconnect the dishwasher from the household electrical system 2 Disconnect the wiring harness connectors from the heater element terminals with a pair of needlenose pliers Remove the two long Hex head nuts securing the heater element to the tub Fig 1 12 4 Remove the heater element from the three 3 metal clips that hold it suspended inside the tub Fig 1 13 HEATER HEATER ELEMENT RETAINING NUTS Removing the Water Inlet Valve 1 2 Removing the Thermal Fuse 1 Turn off the water supply to the dishwasher Turn the timer knob clockwise to the NORMAL WASH position to energize the water inlet valve and relieve water pressure in the line Turn the electrical supply to the dishwasher off and remove the toe panel and access panel Fig 1 14 Fig 1 14 Disconnect
41. e thermal hold default time elapsed or power to the dishwasher was lost at any time during the remainder of the cycle that follows due to a door opening or AC line failure then the sani complete indica tor will flash on and off at the end of the cycle Opening the door or pressing any key will turn the indicator off in either case Note 12 Motor Drain Phase Winding This output is only on when the motor is starting in the wash mode When the control has determined that the motor has started the wash phase wind ing will be turned off Note 13 Motor Drain Phase Winding This output is only on when the motor is starting in the drain mode When the control has determined that the motor has started The drain phase winding will be turned off Note 14 Diagnostic Sensor Input Test The soil sense pressure switch input is active during this interval Pressure switch contact closure at any time during this interval causes the cycle to jump to the next interval Immediately Note 15 Diagnostic Thermal Hold The default status for this thermal hold is on The thermal hold set point is 140 F or thermostat contact closure and the default time is 60 minutes After 60 minutes the thermal hold is terminated and normal cycle timing resumes The diagnostic test cycle advance function can also be used to terminate this thermal hold Note 16 Cycle Complete A clean indicator will be on at the end of this cycle Opening the
42. ee 5 Pe REFERENCE NOTES WHIRLPOOL 98 DIAGNOSTICS 2 ___ ___ ___ ms ___ 2 2 21 i TT EE EE Heze D B Em BE i DIAGNOSTICS AND SALES DEMO TIMING CHART NOTES 1 The diagnostics test cycle starts at interval 11 and concludes at interval 2 To initiate the diagnostics test cycle press the following sequence of keys within 10 seconds High Temp Wash Air Dry High Temp Wash Air Dry or Power Scour Air Dry Power Scour Air Dry The diagnostics test cycle may be manually advanced to the next inter val by pressing the pots amp pans key To exit diagnostics press cancel The sales demo cycle consists of a single 6 minute wash interval which starts at interval 1 and concludes at interval 0 To initiate the sales demo cycle press the following sequence of keys within 10 seconds High Temp Wash Air Dry High Temp Wash Air Dry High Temp Wash or Power Scour Air Dry Power Scour Air Dry Power Scour The diagnostics test cycle executes a soil sensing interval at interval 9 to test the soil sensing circuit The sensing LED is illuminated through out this sense interval If the soil sens
43. ee U DETERGENTDISPENSER Cd WETTING AGENT DISPENSER HER C C CC C CC Cs xr T 2 REFERENCE NOTES NORMAL CYCLE TIMES POTS amp PANS CYCLE TIMES DOOR SWITCH 3369325 USER INTERFACE MODEL PART NO 0 990 0 980 18051133 00940 2 09929 2 0 925 00920 0 920 18051124 N C ITP F 181 3311618 411 40 39 37 36 PRE WASH 2 10 10 MINUTES 10 10 MINUTES HEATER HI LIMIT THERMOSTAT 800 500W OPENS 110 83 15 30 Q 3319486 PRE RINSE 10 10 MINUTES 10 10 MINUTES 8051121 8051460 Sa lalala Eu aetla 83 2 j 11017 il Emn Am mA 5 i 11111111 1 111111 ma ES T 1 11 Pm 111110 111 111111 j Es r LT 211111 Pm 111411 1 1 MAIN WASH FINAL RINSE 5 8 14 10 MINUTES 23 10 MINUTES 53 HEAT DRY SCHEMATIC SHOWN WITH DOOR SWITCH OPEN LINE 120 V 60HZ T T BK DOOR 3376359 SWITCH 98 C 208 F 3369325 P8 ELECTRONIC CONTR
44. electrician Check that the overflow protection float is free to move up and down Check that the overfill switch in opening and closing properly Check for continuity between contacts on fill valve Test timer contacts Follow air gap manufacturer s direction for cleaning Disconnect pump motor from wiring harness and check for continuity Test timer contacts Check for continuity between the terminals of the heater element Check for continuity between terminals of the hi limit thermostat Check for continuity between timer switch contacts and heater TECHNICAL INFORMATION Wiring Diagram Models DU800DWG DU801DWG DU805DWG LINE 120 V 60 HZ I 1 DOOR SWITCH G DOOR SWITCH CABINET GROUND Lu TIMER MOTOR 1 8 WR ROCKER SWITCH WIR OR wiv Lj HEATER THERMAL FUSE ELEMENT NOT RESETTABLE BRW FILL VALVE OVERFILL SWITCH DRAIN GY WASH WN DRIVE MOTOR BU BU Iv BUAW MOTOR START RELAY SCHEMATIC SHOWN WITH DOOR SWITCHES CLOSED ALL CONTACTS OPEN 16 Cycle Timing Chart gt m m m gt m 1N3S933130 9 Es NOILONNA _________ 22 Taso gt EE 2590 gt gt 450 2 21 gt 21 WAS
45. ement Check for 110VAC between P6 and P8 Check for continuity between terminals of the hi limit thermostat TECHNICAL INFORMATION Model DU940SCG DU960SCG DU980SCG WIRING DIAGRAM LINE 120 V CONNECTOR PIN OUT L L N eT ws Pin DESCRIPTION w TCO DOOR DOOR 08 208 2 SWITCH Ribbon Cable to User Interface 5 3369325 Pressure Switch Soil Sense Thermistor Thermostat CONTROL USER INTERFACE 00880 801159 Detergent Dispenser__ _O BK__ TRIACS AND DU990 DU980 8051133 Detergent Dispenser O BK RELAYS SHOWN DU940 8051127 Rinse Agent Dispenser DU920 DP920 8051124 2 5 _ GY W R P3 P4 Motor Auxiliary Winding Wash Motor Auxiliary Winding Drain GY P7 1 HI LIMIT THERMOSTAT 800 500W PTC OPENS 171 F 181 F 15 300 3371618 Switched L1 to Vent Fill Valve BU BK Dual Dispenser amp Pressure Sw Switched L1 to Motor R BK Pa Switch Lto Heater W R _ VENT ACTUATOR 3379372 USED ONLY 600 1800 DU990 MODEL R BK MAIN WINDING 2 0 3 4 0 SENSE RESISTOR DRAIN WINDING 42 700 WASH WINDING 42 700 DETERGENT 600 1800 Q DUAL DISPENSER ACTUATOR RINSE AGENT 3374501 600 1800 BRO NN BRW BU BK FILL VALVE A 695 995W
46. from the cap Slide the drawbars apart Fig 1 28 Turn the wet agent cap and seal assembly counterclockwise and remove it Fig 1 29 Use Special Tool Part No 303918 or a 34 socket to press over the attaching tabs in the wet agent cap opening Remove wet agent dispenser assembly Remove wet agent dispenser actuator by spreading the two 2 locking tabs Fig 1 30 Remove the upper and lower slides from the wet agent dispenser actuator Remove the diaphragm spring and diaphragm 10 Use a screwdriver to gently release the lower tab and remove the detergent door actuator assembly As you do note the position of the door latch level through the hole in the lower slide Fig 1 31 11 Remove the upper slide the slide spring and the lower slide Fig 1 32 7 lt DRAWBAR SPRING DRIP COVER I UPPER SLIDE LOCATING HOLE 1 LOCATING TAB UPPER DRAWBAR DRAWBAR ASSEMBLY UPPER SLIDE N SS LOCATING HOLE py LOCKING TABS 22 le J S wyl LOCATING SY gt Oeil gt i Set LOCKING gt I gt i 22 21 2 lt 1 rr 4 lt s LOWER DRAW
47. h infinity terminals Block the float in the UP full position and measure resistance again 13 COMPONENT SCHEMATIC TESTING PROCEDURE RESULTS Timer Motor Dispenser Mechanism Disconnect the Wiring harness connector from the timer assembly Set VOM meter on the Rx1 scale Measure resistance between timer motor terminals Disconnect the wiring harness connector from the timer assembly Set VOM meter on the scale Connect one probe to contact 31 Tan Connect the other probe to the timer contact to be tested Manually advance the timer until the contact closes Manually advance the timer until the contact opens Remove the front door panel Remove the drip cover Latch the detergent door closed Manually advance the timer through a complete cycle slowly 14 1 Meter should read 1800 30000 Contact CLOSED meter should read 00 Contact OPEN meter should read infinity At 12 o clock position Draw bars will move upward causing the detergent actuator assembly to release the latch and detergent cup should open At 4 o clock position Draw bars will again move upward causing the wetting agent actuator to release wetting agent From the 6 o clock position to the 8 o clock position the draw bars are driven down to reset the mechanism TROUBLESHOOTING GUIDE PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING Always check wiring harness and connectors before initiati
48. he Use and Care Guide Have a qualified electrician check the circuit breaker or fuse Have customer call a qualified electrician Check that the overflow protection float is free to move up and down Check that the overfill switch in opening and closing properly Check for continuity between contacts on fill valve Test timer contacts Follow air gap manufacturer s direction for cleaning Disconnect pump motor from wiring harness and check for continuity Test timer contacts Check for continuity between the terminals of the heater element Check for continuity between terminals of the hi limit thermostat Check for continuity between timer switch contacts and heater TECHNICAL INFORMATION Model DU910PFG Wiring Diagram LINE 120 V 60HZ 4 W WV DOOR SWITCH DOOR SWITCH i 223 W BK 2 1 8 THER MOSTAT TIMER CLOSES 135 145 BU BK T R W V G 5 8 P BK gt TIMER MOTOR 28 1900 2900 PB sw 553 906 Wey 27 gt WOR HEATER 5 t 16 20 OHM R N C 19 6 OR L 1 HI LIMIT OPENS 170 185 F BR WV 1 6 BR BRW VALVE 695 995 OHM OVERFILL SW BU 3 DRAIN __ 57 1 713 5 BU IY WASH Y 2 BU W RUN BU W _ BUA DRIV
49. he actuator slide is positioned against the wet agent dispenser Align the drawbar holes over the locking tabs Look behind the draw bar and make sure to engage the locking tabs with their respective locating holes Press the drawbar into position and slide it upward behind the locking tab ears Install the drawbar spring and snap the drip cover into place Fig 3 10 7 gt DETERGENT DOOR ACTUATOR SPRING Fig 3 15 48 DIAGNOSTICS AND SALES DEMO TIMING CHART 7 6 51413 Sas 5 1 4 REFERENCE NOTES WHIRLPOOL 98 DIAGNOSTICS ___ ___ mu 2 Bm ___ __ 27 2 111111111111 1 1 8 B m man _ 2 22 i DIAGNOSTICS AND SALES DEMO TIMING CHART NOTES 1 The diagnostics test cycle starts at interval 11 and concludes at interval 2 To initiate the diagnostics test cycle press the following sequence of keys within 10 seconds High Temp Wash Air Dry High Temp Wash Air Dry or Power Scour Air Dry Power Scour Air Dry The diagnostics test cycle may be manually advanced to the next inter val by pressing the pots amp pans key To exit diagnostics press cancel
50. in Required on top and bottom edges 7 32 Max CUTTING NOTES Custom panel for the door cannot exceed 8 105 weight The upper and lower panels are not the same width Match wood grain direction with that of adjacent cabi znets Sand panel edges to provide smooth finish IMPORTANT Use moisture resistant sealer on both sides and all edges of the panels to protect from humidity Dish washer is subject to humidity Removing Access and Door Panels 1 Loosen but do not remove the two 2 toe panel screws below the access panel Re move and set aside the two 2 screws above the access panel Fig 4 1 2 Remove the access panel assembly by slid ing it upward to clear the loosened screws This access panel will be replaced by new a new custom panel assembly Fig 4 1 3 Remove the two 2 screws from the bottom of the outer door panel Fig 4 1 Fig 4 1 V Outer Door Panel Screws 3 lt a w 4 A cess Pane N Access Screw 2 lt Panel Screws 4 Pull the bottom of the outer door panel out ward and slide it down approximately to The panel will then be free for removal Fig 4 1 inset Set the door panel aside it will be replaced with a new custom panel Remove the existing door insulation and dis card Installing Custom Panels 1 3 Slip the top edge of the mounting strip up
51. ing pressure switch is tripped at any time during this sense interval the control will immediately terminate the sense interval and proceed with the remainder of the diagnostics cycle If the time limit for this sense interval elapses without detecting soil the control simply proceeds with the remainder of the diagnostics cycle The diagnostics cycle suspends cycle timing and executes a thermal hold at interval 7 The thermal hold interval is terminated and cycle timing resumes when the water is heated to the desired set point tem perature 60 C 140 F The maximum default time limit elapses 1 hour or the cycle is manually advanced to the next interval by pressing the pots amp pans key The water heating LED is illuminated during the ther mal hold The clean LED is illuminated at the end of both the diagnostics test cycle and the sales demo cycle The clean LED can be extinguished by open ing the door or pressing any key During intervals 9 through 3 of the diagnostics cycle the clean LED is illuminated whenever the control detects a resistance of greater than approximately 45 K OHMS on the thermistor thermostat circuit This feature is intended to help determine whether a thermostat or thermistor is installed A thermostat with normally open contacts would trigger the clean LED until the thermostat is tripped Under normal operation the resistance of the thermistor is always less than 45 K OHMS and would not trigger the clean
52. ion so the locking tabs engage the wet agent cap opening No tool is needed for assembly Fig 1 29 Install the seal on the wet agent cap Insert the wet agent cap Turn it clock wise and close it Slide the upper and lower drawbars together Fig 1 28 Move all slides in both assemblies fully down Keep the drawbars slid fully to gether and align the drawbar holes over the locking tabs Look behind the draw bars make sure to engage the locat ing tabs with their respective locating holes Press the drawbars into position and slide them upward behind the locking tab ears Fig 1 27 Install the drawbar spring Fig 1 26 Install the drip cover by snapping it into place 12 SOLUTIONS TO COMMON PROBLEMS DIAGNOSING PROBLEM COMPONENTS PRECAUTIONS TO BE OBSERVED WHILE DIAGNOSING PROBLEM COMPONENTS Disconnect electric power from the dishwasher Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connector block plugged in Resistance checks should be made on components with the electric power off and the connector blocks disconnected COMPONENT SCHEMATIC TESTING PROCEDURE RESULTS Motor Start Relay Disconnect the wire connectors and Relay upright meter should read remove relay from unit infinity Set VOM meter on the Rx1 scale Relay upside down meter should Set the relay upright read less than two 2
53. is aligned with the keyed shaft of the timer When reinstalling the timer be sure the cam follower post is positioned inside the 5 groove Removing the Switch Assembly 1 Disconnect the dishwasher from the electrical supply and remove the toe panel and access panel from the bottom of the dishwasher and the inner door panel 2 Disconnect the harness wires from the spade connectors on the switch assembly Fig 1 24 3 Remove the two 2 Hex head screws securing the switch assembly to the door frame Fig 1 24 The switch assembly can now be removed Fig 1 24 Removing the Door Latch Switches 1 Disconnect the dishwasher from the electrical supply and remove the toe panel and access panel from the bottom of the dishwasher and the inner door panel Fig 1 25 HANDLE amp LATCH ASSEMBLY 2 Disconnect the wiring harness connectors from the door latch switch terminals 3 Unclip the handle and latch assembly from the door frame 4 Toremove the switches from the handle and latch assembly push the two 2 retaining pins out of the holes and remove the switches a 2 RETAINING PINS Dishwasher Dispenser Disassembly 1 Remove the drawbar spring Fig 1 26 2 Align lower drawbar holes with the locking tabs and remove the upper and lower drawbars As you do note the locating tabs behind them and how they align with their respective locating holes Fig 1 27 Remove the seal
54. istor Air Dry Opens the circuit to the heater element during the dry period of the cycle This option is not available on quick wash or rinse only cycles which have no dry period Power Scour Inserts additional heated wash time into the pots n pans heavy and normal cycle pre wash sequence interval 39 becomes a 16 minute thermostatically controlled heated wash Turns the heater on in interval 33 of the normal cycle pre rinse invokes a thermal hold in the main wash of the normal cycle and extends interval 23 to 10 minutes in the pots n pans and heavy cycles This option is not available on low energy china wash quick wash or rinse only cycles Section Four INSTALLATION CONSIDERATIONS INSTALLING CUSTOM PANEL ACCESSORY KIT Custom Color Panels Black P N 675775 White P N 675776 Almond 675777 Installation Instructions In many instances customers want to integrate the undercounter dishwasher appearance with overall kitchen design by installing panels of wood matching that used in the cabinets After the two panels an upper panel and a lower panel are cut and finished as described below use the materials in the Dishwasher Custom Panel Accessory Kit to install them by following the installation instructions Custom Panel Dimensions NOTE A 14 thickness actual 7 32 can be used for wood panels If using thicker material edges must be routed to 7 32 as shown in box below 18 21 32 22 13 16 1 M
55. n Selecting the air dry option causes the heater to be turned off during this interval Note 9 China Dry Interval When the china wash cycle is selected the heater will be turned off during this interval Note 10 Option LED s When a valid option is active then the LED for the option will be on Note 11 Sani Complete LED When the sani rinse option has been selected and completed A sani com plete indicator is illuminated at the end of the cycle During a cycle in which 41 sani rinse has been selected the target thermal hold temperature for the sani rinse option must be satisfied and maintained If this condition is not satisfied because the final rinse thermal hold default time elapsed or power to the dishwasher was lost at any time during the remainder of the cycle that follows due to a door opening or AC line failure then the sani complete indica tor will flash on and off at the end of the cycle Opening the door or pressing any key will turn the indicator off in either case Note 12 Motor Drain Phase Winding This output is only on when the motor is starting in the wash mode When the control has determined that the motor has started the wash phase wind ing will be turned off Note 13 Motor Drain Phase Winding This output is only on when the motor is starting in the drain mode When the control has determined that the motor has started The drain phase windi
56. n or stops during cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes 1 Door is not latching properly Child lock is ON Wash Cycle not set properly Household fuse blown or circuit breaker tripped Washer is not wired into a circuit with proper voltage Overflow protection float is stuck in up position Fill valve is inoperable Control board is inoperable Air gap if installed is clogged Pump motor is inoperable Control board is inoperable Heater element burned out Hi limit thermostat inoperable 50 Check to make sure handle link is properly seated in door latch assembly Check that the door switch is opening and closing properly Turn child lock OFF Review setting Wash Cycles in the Use and Care Guide Have a qualified electrician check the circuit breaker or fuse Have customer call a qualified electrician Check that the overflow protection float is free to move up and down Check that the overfill switch in opening and closing properly Check for continuity between contacts on fill valve Check for 110VAC between P2 5 and P12 3 Follow air gap manufacturer s direction for cleaning Disconnect pump motor from wiring harness and check for continuity between V amp BU GY V amp Y Check for 110VAC between P10 and P3 P10 and P5 and P10 and P4 Check for continuity between the terminals of the heater el
57. ng will be turned off Note 14 Diagnostic Sensor Input Test The soil sense pressure switch input is active during this interval Pressure switch contact closure at any time during this interval causes the cycle to jump to the next interval Immediately Note 15 Diagnostic Thermal Hold The default status for this thermal hold is on The thermal hold set point is 140 F or thermostat contact closure and the default time is 60 minutes After 60 minutes the thermal hold is terminated and normal cycle timing resumes The diagnostic test cycle advance function can also be used to terminate this thermal hold Note 16 Cycle Complete A clean indicator will be on at the end of this cycle Opening the door or pressing any key will turn the indicator off Note 17 Diagnostics Cycle Thermostat Thermistor Indicator The clean LED will turn on during the display test at the beginning of the cycle interval 11 and again at the conclusion of the cycle interval 2 less of what it detects on the thermistor input The clean LED will be on in intervals 1 through 8 of the cycle whenever an open resistance greater than 200K OHMS 50K OHMS is detected on the thermistor input by the control Consequently if a normally open operating thermostat were to be installed on the thermistor input the clean LED would be on throughout the cycle until the thermostat tripped e g during the thermal hold With a
58. ng any test procedures AND DIAGNOSING PROBLEMS Disconnect electric power from the dishwasher before touching the printed circuit boards or re seating wire connectors Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connector block plugged in Resistance checks should be made on components with the electric power off and the connector blocks disconnected PROBLEM Dishwasher does not run or stops during cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes POSSIBLE CAUSES 1 Door is not latching properly Child lock is ON Wash Cycle not set properly Household fuse blown or circuit breaker tripped Washer is not wired into a circuit with proper voltage Overflow protection float is stuck in up position Fill valve is inoperable Open timer contacts Air gap if installed is clogged Pump motor is inoperable Open timer contacts Heater element burned out Hi limit thermostat inoperable Open circuit between timer and heater 15 CORRECTION TEST Check to make sure handle link is properly seated in door latch assembly Check that the door switch is opening and closing properly Turn child lock OFF Review setting Wash Cycles in the Use and Care Guide Have a qualified electrician check the circuit breaker or fuse Have customer call a qualified
59. ower scour option changes this interval to 16 minute heated wash interval for all 3 cycles normal heavy and pots n pans the water temperature reaches 140 F or the thermostat closes The heater is turned off Time continues to elapse and all other output states remain the same until the prescribed interval time has elapsed Note 2 Pre Wash Thermal Hold This thermal hold is only executed during the heavy and pots n pans cycles The thermal hold setpoint is 140 F or thermostat contact closure and the de fault time is 25 minutes Pressure switch contact closure at any time during this interval causes the cycle to jump to interval 37 Immediately Note 3 Pre Rinse Sense Interval Pressure switch contact closure at any time during this interval causes the cycle to jump to interval 31 Immediately For the normal cycle the heater is off during this interval For the heavy and pots n pans cycles the heater is during this interval The power scour option changes this interval to a heated wash interval for the normal cycle If the water temperature reaches 140 F or the thermostat closes The heater is turned Time continues to elapse and all output states remain the same until the prescribed interval time has elapsed Note 4 Pre Rinse Thermal Hold This thermal hold is only executed during the heavy and pots n pans cycles and only occurs if the pressure switch trips during the sense or thermal hold inte
60. r clamps secure the pump and motor assembly to the tub Rotate these inward 90 Fig 2 7 4 Remove the drain hose and clamp from the check valve and unscrew the check valve from the pump Fig 2 8 5 Remove the tuned sound absorber Use an open end wrench to loosen the shaft from the motor Do not loosen the sound absorber by torquing on the large tuned resonator NOTE A small container will be required to catch water from the drain hose after removal Check Valve Tuned Sound Absorber Clamp Shown Rotated Inward 90 Servicing the Operating Thermostat The operating thermostat is secured to the bottom of the pump housing Fig 2 10 1 Disconnect the two 2 wiring harness leads from the terminals on the thermostat 2 Remove the two 2 Hex head screws securing the thermostat to the pump housing Operating Thermostat Fig 2 10 30 ACCESSING COMPONENT INSIDE THE DISHWASHER DOOR Removing Access and Outer Door Panels 1 Loosen but do not remove the two 2 toe panel screws below the access panel Re move and set aside the two 2 screws above the access panel Fig 2 11 2 Remove the access panel assembly by slid ing it upward to clear the loosened screws Fig 2 11 3 Remove the two 2 screws from the bottom of the outer door panel Fig 2 11 4 Pull the bottom of the outer door panel out ward and slide it down approximately 1 2 to The panel will then be free fo
61. r removal Fig 2 11 inset 5 Remove the existing door insulation Access to the detergent and rinse aid dispensers is lt now possible el nN lt B lt Access Panel Toe Panel Access Screw 2 lt Panel Screws Fig 2 11 Removing the Inside Door Panel 1 Disconnect the dishwasher from the electrical supply 2 Disconnect the end of the door springs from the door spring tension adjustment holes in the frame runner 3 Open the dishwasher door and remove the eight 8 T 15 Torx screws securing the inner door panel from the door frame Fig 2 12 4 Slide the inner door panel back toward the dish washer to disengage the spring loaded locking tab from the door panel then lift the door panel away from the door Fig 2 13 Spring Loaded Fig 2 13 Locking Tab 4 Remove the control cover q SLIDE INNER DOOR PANEL TOWARD DISHWASHER 31 Replacing the Spring Loaded Locking Tab The inner door panel is held in place by a spring loaded locking tab located on the door frame rail just below the console Fig 2 14 To remove this assembly remove the spring and slide the locking tab back until the locating tab is in the key hole Fig 2 15 Then lift the locking tab up To replace the assembly reverse this procedure Locking Tab Assembly x 27 Fig 2 15 32 TROUBLESHOOTING GUIDE
62. rvals of the pre wash the thermal hold setpoint is 140 F or thermostat con tact closure and the default time is 20 minutes Pressure switch contact clo sure at any time during this interval causes the cycle to jump to interval 31 Immediately Note 5 Main Wash Thermal Hold This thermal hold is automatic for the pots n pans and heavy cycles set point 140 F For the normal cycle This thermal hold is invoked by selecting the power scour or high temp wash options Set Point 140 F or as a result of the pressure switch tripping during the pre wash Set Point 130 F For the low energy wash and quick wash cycles This thermal hold is invoked by se lecting the high temp wash option Set Point 140 F In all cases the default time for this thermal hold is 20 minutes Note 6 Main Wash Recirculation Interval The power scour option increases the length of this interval to 10 00 for the pots n pans and heavy cycles Note 7 Final Rinse Thermal Hold This thermal hold is automatic for all cycles except the china wash and rinse only cycles Set Point 140 F For the china wash cycle this thermal hold only occurs if the pressure switch trips during the pre rinse Set Point 130 F In all cases the default time is 25 minutes If the sani rinse option is selected then the set point for this thermal hold becomes 150 F and the default time changes is 25 minutes Note 8 Air Dry The default status for the dry period is heat dry o
63. ss panel from the bottom of the dishwasher 2 Disconnect the three 3 wiring harness connectors from the motor relay terminals 3 Remove the Hex head screw securing the motor relay to the tub support Fig 1 20 22 A RETAINING SCREW Fig 1 20 Accessing Components Inside the Door 1 Disconnect the dishwasher from the electrical supply and remove the toe panel and access panel from the bottom of the dishwasher 2 Disconnect the end of the door springs from the door spring tension adjustment holes in the frame runner Note which holes were used and reattach the door springs in the same holes when the repairs are complete Fig 1 21 3 Open the dishwasher door and remove the eight 8 T 15 Torx screws securing the inner door panel from the door frame Fig 1 22 4 Remove the timer cover by releasing the two 2 retaining tabs at each end from the door frame Removing the Timer Wiring Harness Connector 1 Disconnect the dishwasher from the electrical supply and remove the toe panel and access panel from the bottom of the dishwasher and the inner door panel Screw 2 Disconnect the wiring harness connectors from the timer terminals Fig 1 23 Screw 3 Remove the three 3 Hex head screws securing the timer to the door frame Fig 1 23 The timer Fig 1 22 Connector cam and cam follower can now be removed NOTE When reinstalling the cam be sure it
64. stuck in the depressed position dishwasher operation will be suspended and the control will flash the LED associated with that key until the condition is corrected If a key without an LED is stuck or multiple keys are stuck the control will flash the lock out LED Section Three POWER CLEAN FILTER MODELS WITH INTERNAL WATER FEED Models GU940SCG 0960 699805 THEORY OF OPERATION Console Configurations Model GU940SCG 4 EERE EE u __ _ POWER CLEAN FILTER Pump and Motor Operation 1 Once the tub has filled with hot water the motor begins to rotate forcing the water up through the pump chamber and out through the spray arms Two spray jets on the underside of the lower spray arm direct water down onto the fine mesh screen of the pump housing to clear soils that may collect there during the wash cycle Fig 3 1 As water and soils return to the lower pump area the chopper blade grinds the particles into smaller sizes that then pass through the perforated plate into the upper chamber of the pump The pump impeller causes the soil ladened water to be lifted and moved to the outer edges of the pump chamber where they are forced into the separator Clean water is then forced up through the spray arms and fine mesh screen Fig 3 1 When the drain cycle begins the drive motor changes direction This relieves the pressure on the two check balls opening the drain system
65. tch contact closure at any time during this interval causes the cycle to jump to interval 31 Immediately For the normal cycle the heater is off during this interval For the heavy and pots n pans cycles the heater is during this interval The power scour option changes this interval to a heated wash interval for the normal cycle If the water temperature reaches 140 F or the thermostat closes The heater is turned Time continues to elapse and all output states remain the same until the prescribed interval time has elapsed Note 4 Pre Rinse Thermal Hold This thermal hold is only executed during the heavy and pots n pans cycles and only occurs if the pressure switch trips during the sense or thermal hold intervals of the pre wash the thermal hold setpoint is 140 F or thermostat con tact closure and the default time is 20 minutes Pressure switch contact clo sure at any time during this interval causes the cycle to jump to interval 31 Immediately Note 5 Main Wash Thermal Hold This thermal hold is automatic for the pots n pans and heavy cycles set point 140 F For the normal cycle This thermal hold is invoked by selecting the power scour or high temp wash options Set Point 140 F or as a result of the pressure switch tripping during the pre wash Set Point 130 F For the low energy wash and quick wash cycles This thermal hold is invoked by se lecting the high temp wash option Set Point 140 F
66. the pump and motor assembly 44 Servicing the Soil Sensing System The Soil Sensing System consists of a pressure sensitive switch connected to the dishwasher pump base Fig 3 8 The system detects excessive amounts of food soils during the sensing portion of the wash cycle and signals the electronic control board to either terminate the wash cycle and initiate drain to flush soils from the system or skip certain parts of the heavy soil cycle The pressure switch is connected to the pump base through a plastic hose The pressure switch is secured to the bottom of the dishwasher tub by two 2 Hex head screws Pressure Switch Plastic Tube Fig 3 8 Servicing The Dishwasher Dispenser Assembly Fig 3 9 Models DU920SFG DP920SFG GU940SFG 209605 and GU980SFG utilize a modified draw bar to accommodate two wax motors Fig 3 9 to activate the detergent and weiting agent dispensers The remainder of the dispenser as sembly is serviced inthe same manner as all other Dual Wax models Motors 45 Dishwasher Dispenser Disassembly 1 Remove the drawbar spring Fig 3 10 2 Grasp the lower edge of the drawbar and it away from the panel stop Slide the drawbar down until the drawbar holes align with the locking tabs then remove the drawbar Note how the locating tabs be hind the drawbar align with their respec tive locating holes in the drawbar Fig 3 11 3 Turn wet agent cap and seal
67. the wiring harness connector from the water inlet valve terminals Fig 1 15 Disconnect the water lines from the water inlet valve Remove the Hex head screw securing the water inlet valve to the tub support assembly Turn the electrical supply to the dishwasher off and WIRE remove the toe panel and access panel Disconnect the orange and white wires from the thermal RETAINING fuse terminals Fig 1 16 SCREW Remove the Hex head screw securing the thermal fuse A to the tub and remove the thermal fuse from the dishwasher ORANGE WIRE Removing the Float Switch 1 Turn the electrical supply to the dishwasher off and remove the toe panel and access panel gt 2702 Remove the Hex head screw securing the float switch to the tub Fig 1 17 FLOAT SWITCH Lift the float from the housing inside the tub HOUSING Unsnap the float switch housing cover and disconnect the two 2 wires from the terminals of the switch RETAINING Fig 1 18 SCREW Fig 1 17 58 Fig 1 18 SWITCH COVER Removing the Check Valve RETAINING 1 Remove the toe panel and access panel from the SCREW bottom of the dishwasher 2 Remove the hoses from the check valve Fig 1 19 3 Remove the Hex head screw securing the check valve to the tub support Fig 1 19 Removing the Motor Relay 1 Disconnect the dishwasher from the electrical supply and remove the toe panel and acce
68. ther mistor installed the clean LED would only be on in intervals 10 and 0 Be cause the thermistor always has a resistance of between 50 K OHMS and 8 K OHMS under normal operating conditions Options Water Heat Forces a thermal hold to occur in the main wash regardless of soil level The set point for this thermal hold is 140 F This option is automatic with the pots and heavy cycles It is not available on china wash or rinse only cycles Sani Rinse Raises the setpoint temperature of the thermal hold in the final rinse to ap proximately 65 C 150 F This option is not available with china wash quick wash amp rinse only cycles This option is only possible on models that use a thermistor Air Dry Opens the circuit to the heater element during the dry period of the cycle This option is not available on quick wash or rinse only cycles which have no dry period Power Scour Inserts additional heated wash time into the pots n pans heavy and normal cycle pre wash sequence interval 39 becomes a 16 minute thermostatically controlled heated wash Turns the heater on in interval 33 of the normal cycle pre rinse invokes a thermal hold in the main wash of the normal cycle and extends interval 23 to 10 minutes in the pots n pans and heavy cycles This option is not available on low energy china wash quick wash or rinse only cycles DIAGNOSTICS AND SALES DEMO TIMING CHART 7 6 51413 e
69. through and out of the collector through the top port and into the drain line Fig 1 3 Food particles collected during the Wash cycle are carried out with the drain water When the Drain cycle ends and the pump stops running the ball settles to the bottom of the collector COMPONENT ACCESS WARNING ELECTRICAL SHOCK HAZARD Disconnect electric supply from the dishwasher before servicing Replace all panels before operating Failure to do so could result in death or electrical shock Component Location DOOR LATCH SWITCHES we TIMER DRY SELECTOR SWITCH lt DETERGENT amp RINSE AGENT DISPENSER ASSY 5 THERMAL FUSE Bottom Right side Rear of Tub HEATER ELEMENT AE Z on SWITCH CHECK VALVE y PUMP amp MOTOR ASSEMBLY MOTOR RELAY WATER INLET VALVE Removing the Spray Arm Assembly 1 Disconnect the dishwasher from the house hold electrical system 2 Open the dishwasher door and remove the lower rack the pump outlet nut Fig 1 4 4 Lift the soray arm assembly out of the pump fitting 5 The spray arm can be disassembled by removing the retaining screw from the spray arm and removing the split ring seal the pump outlet nut and the support and bearing assembly Fig 1 5 PUMP OUTLET NUT gt SUPPORT 8 BEARING RETAINING SCREW 1 Fig 1 5 Removing the Pump and Motor Assembly 1 Disconnect
70. til the extension snaps into place Fig 4 7 7 Remove the adhesive backing from the ac cess panel insulation and press the insula tion firmly into place Fig 4 8 8 the access panel upright Slide the cus tom panel down into the bottom and side slots Fig 4 9 9 Secure the custom panel by inserting tabs on the panel retainer into the notches along the top back surface of the access panel Press firmly on the forward edge of the retainer to snap it into place Fig 4 10 10 Refer to Fig 4 1 on page 71 Install the ac cess panel assembly to the dishwasher by aligning the slots in the back flange of the extension over the two 2 screw heads pro truding from the tow panel Slide the access panel downward and tighten the screws Access Panel Retainer Fig 4 10 57 Installing Heavy Duty Door Springs Standard door springs may need to be replaced by heavy duty springs designed to compensate for the increased weight of the door resulting from the installation of custom panels Perform the following tests to determine whether the heavy duty springs need to be installed Heavy Duty Door Spring Kit Kit contains two 2 heavy duty door springs and instruction sheet Kit P N 3379643 Door Operation Test Springs should have enough tension to assist in closing the heavier door e Door should open evenly without excessive speed which would cause it to drop abruptly Door should remain fully open without
71. trol lock feature and LED can be turned on or off by the customer at any time by holding down the air dry option key for 4 seconds Delay Start Allows the customer to delay the start of a cycle by up to 6 hours Each press of the delay key increases the delay time selection by two hours The selected delay period will begin clocking down upon selecting the cycle key The cycle selected will begin automatically upon completing the delay period Error Messages Stuck Key If the control detects that a key is stuck in the depressed position dishwasher operation will be suspended and the control will flash the LED associated with that key until the condition is corrected If a key without an LED is stuck or multiple keys are stuck the control will flash the lock out LED TROUBLESHOOTING GUIDE PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING AND DIAGNOSING PROBLEMS Always check wiring harness and connectors before initiating any test procedures Disconnect electric power from the dishwasher before touching the printed circuit boards or re seating wire connectors Voltage checks should be made by inserting meter probes beside the wires in the connector blocks with the electric power source on and the connector block plugged in Resistance checks should be made on components with the electric power off and the connector blocks disconnected TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSES CORRECTION TEST Dishwasher does not ru

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