Whirlpool KD-11 PUMP AND MOTOR OPERATION

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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.

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.

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.

5. Soiled water is pumped out of the dishwasher through the check valve and drain hose.

PUMP AND MOTOR OPERATION

Contents

Main INTRODUCTION GOALS AND OBJECTIVES ADDITIONAL INFORMATION TABLE OF CONTENTS SECTION TWO SECTION THREE SECTION FOUR Page THEORY OF OPERATION PUMP AND MOTOR OPERATION COMPONENT LOCATION Section Two COMPONENT ACCESS Removing Access and Outer Door Panels Removing the Heater Element Replacing the Heater Element Servicing the Vertical Water Tube (Fig. 2-3) Fig. 2-5 Fig. 2-6 Fig. 2-6-3 Removing the Pump Motor Assembly Servicing the Soil Sensing System (Fig. 2-12) Fig. 2-14 Fig. 2-12 Servicing the Operating Thermostat Dishwasher Dispenser Disassembly Page TROUBLESHOOTING GUIDE Model DU910PFG PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING PROBLEM POSSIBLE CAUSES CORRECTION/TEST Section Three DIAGNOSIS AND TROUBLESHOOTING PROBLEM POSSIBLE CAUSES CORRECTION/TEST PRECAUTIONS TO BE OBSERVED WHILE TROUBLESHOOTING TROUBLESHOOTING GUIDE Models DP920PFG, DU920PFG, GU940SCG, GU960SCG and GU980SCG 13 COMPONENT TESTING PRECAUTIONS TO BE OBSERVED WHILE DIAGNOSING PROBLEM COMPONENTS COMPONENT SCHEMATIC TESTING PROCEDURE RESULTS 14 COMPONENT SCHEMATIC TESTING PROCEDURE RESULTS Page Page Page Page CYCLE TIMING CHART NOTES DIAGNOSTICS AND SALES DEMO TIMING CHART DIAGNOSTICS AND SALES DEMO TIMING CHART NOTES Page Removing Access and Door Panels INSTALLING CUSTOM PANEL ACCESSORY KIT Installation Instructions Custom Panel Dimensions CUTTING NOTES: Custom Color Panels: Installing Custom Panels (Fig. 4-4) (Fig. 4-2) (Fig. 4-6) (Fig. 4-3) Page Installing Heavy Duty Door Springs Heavy Duty Door Spring Kit: Fig. 4-11 Door Operation Test: (Fig. 4-11) INSTALLING THE FLOOR MOUNTING KIT KIT CONTENTS (P/N 4378968): Fig. 4-14 (Fig. 4-12) INSTALLATION INSTRUCTIONS WHIRLPOOL Dishwasher Warranty Page SERIAL PLATE LOCATOR SERIAL NUMBER DESIGNATOR MODEL NUMBER DESIGNATOR SERIAL/MODEL NUMBER PLATE CONTACT INFORMATION