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Kenmore DU920PFG manual

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  • Page 1

    I CONSUMER SERVICES TECHNICAL EDUCA TION GROUP PRESENTS KD-10 JOB AID Part No. 4322430 1998 DISHWASHERS Servicing and Troubleshooting MODELS DU800DWG DU801DWG DU805DWG DU810DWG DP840DWG DU840DWG DU850DWG DU890DWG DU910PFG DP920PFG DU920PFG GU940SCG GU960SCG GU980SCG[...]

  • Page 2

    II INTRODUCTION This Job Aid, “1998 DISHW ASHERS, Servicing and T roubleshooting ,” (Part No. 4322430) provides specific information for the installation, service and repair of 1998 Whirlpool Dishwashers. “1998 DISHW ASHERS, Servicing and T roubleshooting ,” has been compiled to provide the most re- cent information on design, features, tro[...]

  • Page 3

    III TABLE OF CONTENTS INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II T ABLE OF CONTENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IV SECTION ONE DURA W ASH MODE[...]

  • Page 4

    IV -- NOTES --[...]

  • Page 5

    1 Section One DURAWASH MODELS WITH SOIL SETTLER AND TELESCOPING TOWER THEOR Y OF OPERA TION Console Configuration DU800DWG, DU801DWG, DU805 DU810DWG DU840DWG, DP840DWG DU850DWG DU890DWG[...]

  • Page 6

    2 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 an[...]

  • Page 7

    3 COMPONENT ACCESS Component Location ! W ARNING 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. (Bottom Right-side Rear of T ub)[...]

  • Page 8

    4 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. 3. Use an adjustable slip-nut wrench and loosen the pump outlet nut. (Fig. 1-4) 4. Lift the spray arm assembly out of the pump fitting. 5. The spray arm can be disassembled by removing the ret[...]

  • Page 9

    5 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 . Fig. 1-7 PUMP INLET HOSE DRAIN HOSE NOTE: Once the pump and mo- tor assembly has b[...]

  • Page 10

    6 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 [...]

  • Page 11

    7 Removing the W ater Inlet V alve 1. Turn of f the water supply to the dishwasher . 2. Turn the timer knob clockwise to the NORMAL W ASH position to energize the water inlet valve and relieve water pressure in the line. 3. Turn the electrical supply to the dishwasher of f and remove the toe panel and access panel. (Fig. 1-14) 4. Disconnect the wir[...]

  • Page 12

    8 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[...]

  • Page 13

    9 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-[...]

  • Page 14

    10 Dishwasher Dispenser Disassembly 1. Remove the drawbar spring. (Fig. 1-26) 2. Align the 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) 3. Slide the drawbars apart. (Fig. 1-28) 4. Turn the wet agen[...]

  • Page 15

    11 Fig. 1-28 Fig. 1-29 Fig. 1-30 Fig. 1-31[...]

  • Page 16

    12 Dishwasher Dispenser Assembly 1. Assembly the upper slide, slide spring and lower slide to the detergent door actuator . (Fig. 1-32) 2. 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) 3. The door [...]

  • Page 17

    13 SOLUTIONS T O COMMON PROBLEMS DIAGNOSING PROBLEM COMPONENTS PRECAUTIONS TO BE OBSERVED WHILE DIAGNOSING PROBLEM COMPONENTS Disconnect electric power from the dishwasher . V oltage 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. Resistan[...]

  • Page 18

    14 COMPONENT SCHEMA TIC TESTING PROCEDURE RESUL TS Timer Motor Timer Dispenser Mechanism 1. Disconnect the Wiring harness connector from the timer assembly . 2. Set VOM meter on the Rx1 scale. 3. Measure resistance between timer motor terminals. 1. Disconnect the wiring harness connector from the timer assembly . 2. Set VOM meter on the Rx1 scale. [...]

  • Page 19

    15 PRECAUTIONS T O BE OBSER VED 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. V oltage checks should be made by inserting meter probes beside the wi[...]

  • Page 20

    16 TECHNICAL INFORMA TION Wiring Diagram Models DU800DWG, DU801DWG, DU805DWG SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 21

    17 Cycle T iming Chart[...]

  • Page 22

    18 Wiring Diagram Model DU810DWG SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 23

    19 Cycle T iming Chart[...]

  • Page 24

    20 Wiring Diagram Models DU840DWG, DP840DWG SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 25

    21 Cycle T iming Chart[...]

  • Page 26

    22 Wiring Diagram Model DU850DWG SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 27

    23 Cycle T iming Chart[...]

  • Page 28

    24 Wiring Diagram Model DU890DWG SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 29

    25 Cycle T iming Chart[...]

  • Page 30

    26 --NOTES --[...]

  • Page 31

    27 Section T wo POWER CLEAN FILTER MODELS WITH TOWER WATER FEED Models: DU910PFG, DP920PFG, DU920PFG THEOR Y OF OPERA TION Console Configuration Model DU910PFG Models DP920PFG, DU920PFG 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. T wo spray jets o[...]

  • Page 32

    28 COMPONENT ACCESS TIMER LA TCH ASSEMBL Y FILL VA L V E MOT OR RELA Y FLOA T SWITCH OPERA TING THERMOST A T (Attached to bottom of pump housing) HI LIMIT THERMOST A T PUMP AND MOT OR ASSEMBL Y HEA TER DETERGENT AND RINSE AID DISPENSER ASSEMBL Y PROGRAM SWITCHES INDICA TOR LIGHTS[...]

  • Page 33

    29 Removing the Heater Element From beneath the cabinet: 1. Remove the front access panel. (See Removing the Outer Door Panel) 2. Pull the spade 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. 5. Remove the l[...]

  • Page 34

    30 2. Disconnect the wiring harness from the motor harness plug. 3. Rubber 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 [...]

  • Page 35

    31 ACCESSING COMPONENT INSIDE THE DISHW ASHER 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[...]

  • Page 36

    32 Replacing the Spring Loaded Locking T ab 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) T o 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. T o repl[...]

  • Page 37

    33 TROUBLESHOOTING GUIDE Model DU910PFG PRECAUTIONS T O BE OBSER VED 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. V oltage checks should be made by[...]

  • Page 38

    34 TECHNICAL INFORMA TION Model DU910PFG Wiring Diagram SCHEMA TIC SHOWN WITH DOOR SWITCHES CLOSED, ALL CONT ACTS OPEN[...]

  • Page 39

    35 Strip Circuits HEA T DR Y (Steps 30 - 44) FILL (Steps 1, 9, 14, 23, 48) W ASH (Steps 2 - 7, 10 - 12, 15 - 20, 24 - 28, 49) DRAIN (Steps 8, 13, 21 - 22, 29, 50) W A TER HEA TING (Steps 6 - 7, 18 - 19, 23 - 24) NO HEA T DR Y (Switch H OPEN) Harness T erminal Block (W ire End) Black White[...]

  • Page 40

    36 Cycle T iming Charts[...]

  • Page 41

    37 PROBLEM POSSIBLE CAUSES CORRECTION/TEST Dishwasher does not run or stops during a cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes 1. Door is not latching properly . 2. Child lock is "ON". 3. W ash Cycle not set properly . 4. Household fuse blown or circuit breaker tripped. 5. W asher is not wired[...]

  • Page 42

    38 TECHNICAL INFORMA TION Models DP920PFG & DU920PFG WIRING DIAGRAM CONNECT OR PIN OUT Pin No. DESCRIPTION P1 P2-1 P2-2 P2-3 P2-4 P2-5 P3 P4 P5 P6 P7 P8 P10 Ribbon Cable to User Interface Pressure Switch (Soil Sense) Thermistor/Thermostat Detergent Dispenser Rinse Agent Dispenser Fill V alve Motor Main Winding Motor Auxiliary W inding - Wash Mo[...]

  • Page 43

    39 STRIP CIRCUITS[...]

  • Page 44

    40 STRIP CIRCUITS CYCLE TIMING CHART[...]

  • Page 45

    41 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 “on” during this interval. The power scour option changes this interval t[...]

  • Page 46

    42 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 [...]

  • Page 47

    43 Section Three POWER CLEAN FILTER MODELS WITH INTERNAL WATER FEED Models: GU940SCG, GU960SCG, GU980SCG THEOR Y OF OPERA TION Console Configurations Model GU940SCG Model GU960SCG Model GU980SCG 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. T wo spr[...]

  • Page 48

    44 COMPONENT ACCESS Servicing the V ertical W ater T ube 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 disconnecte[...]

  • Page 49

    45 Servicing The Dishwasher Dispenser Assembly Models DU920SFG, DP920SFG, GU940SFG, GU960SFG and GU980SFG utilize a modified draw bar to accommodate two wax motors (Fig. 3-9) to activate the detergent and wetting agent dispensers. The remainder of the dispenser as- sembly is serviced in the same manner as all other models. Dual W ax Motors Wire Con[...]

  • Page 50

    46 Fig. 3-10 Fig. 3-11 Dishwasher Dispenser Disassembly 1. Remove the drawbar spring. (Fig. 3-10) 2. Grasp the lower edge of the drawbar and pull 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- [...]

  • Page 51

    47 Fig. 3-12 Fig. 3-13 Fig. 3-14[...]

  • Page 52

    48 Dishwasher Dispenser Assembly 1. Assembly the slide and slide spring to the detergent door actuator . (Fig. 3-15) 2. 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) 3. The door latch lever must p[...]

  • Page 53

    49 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 [...]

  • Page 54

    50 PROBLEM POSSIBLE CAUSES CORRECTION/TEST Dishwasher does not run or stops during a cycle Dishwasher will not fill Dishwasher will not drain Dishwasher will not dry dishes 1. Door is not latching properly . 2. Child lock is "ON". 3. W ash Cycle not set properly . 4. Household fuse blown or circuit breaker tripped. 5. W asher is not wired[...]

  • Page 55

    51 WIRING DIAGRAM TECHNICAL INFORMA TION Model DU940SCG, DU960SCG, DU980SCG CONNECT OR PIN OUT Pin No. DESCRIPTION P1 P2-1 P2-2 P2-3 P2-4 P2-5 P3 P4 P5 P6 P7 P8 P10 Ribbon Cable to User Interface Pressure Switch (Soil Sense) Thermistor/Thermostat Detergent Dispenser Rinse Agent Dispenser Fill V alve Motor Main Winding Motor Auxiliary W inding - Was[...]

  • Page 56

    52 STRIP CIRCUITS[...]

  • Page 57

    53 STRIP CIRCUITS CYCLE TIMING CHART[...]

  • Page 58

    54 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 “on” during this interval. The power scour option changes this interval t[...]

  • Page 59

    55 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 assembl[...]

  • Page 60

    56 4. Pull the bottom of the outer door panel out- ward and slide it down approximately ¼” to ½”. 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. 5. Remove the existing door insulation and dis- card. Installing Custom Panels 1. Slip the top edge of the mounting [...]

  • Page 61

    57 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 until 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. Set the access panel upright.[...]

  • Page 62

    58 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[...]

  • Page 63

    59 INST ALLING THE FLOOR MOUNTING KIT KIT CONTENTS (P/N 4378968): 2 P/N 9743463 Brackets (Fig. 4-12) 1 P/N 4378974 Instruction Sheet INST ALLA TION INSTRUCTIONS 1. Loosen the two (2) screws below the access panel and remove the two (2) screws above the access panel. (Fig. 4-13) 2. Carefully slide the access panel upward and off the two (2) screws b[...]

  • Page 64

    60 -- NOTES --[...]

  • Page 65

    V[...]

  • Page 66

    VI[...]