Please check below video for drain pump removal---
Please refer these instructions for details---
1. Unplug dishwasher or disconnect power.
2. Turn off the water going to the dishwasher.
3. Disconnect the drain line from the dishwasher.
4. Remove the dishwasher drawer and turn it over.
5. Unclip the locking tab from the air cover, slide it forward off the rails, and remove the cover.
6. Use a screwdriver and unsnap the underside of the wiring cover arms, and remove the cover from the bottom of the drawer.
7. Wedge a screwdriver blade into the three top slots of the wiring cover and unsnap the cover from the motor housing.
8. To remove the hall sensor:
a) Disconnect the wire connector at P701.
b) Unclip the locking tab from the hall sensor board and lift the board up and off the motor/heater housing.
9. To remove the wash and drain motor and heater element assembly:
a) Remove the hall sensor (see step 8).
b) Disconnect the green wire from the ground terminal.
c) Remove the drain and fill hoses, and the electrical wires from the locking ring clips.
d) Disconnect the heater element wiring connector.
e) Unclip the two locking arms on the motor housing from the end of the drain hose, and pull the hose out of the housing.
f) Pull straight up and disconnect the three wire connectors from the motor terminals.
g) Lift the locking arm, and rotate the locking ring in a counterclockwise direction until the outer tabs line up with the tub slots. NOTE: The motor housing tabs and slots will also be loose at this point.
h) Lift the motor housing, locking ring, and heater element off the tub, and pull the suction nozzle out of the tub drain opening.
i) Remove the wash and drain motor and the heater element from the tub.
1. Check the motor and heater seals for wear or damage. Replace them, if necessary.
2. When you reinstall the heater element, locking ring, and wash & drain motor onto the tub, make sure that the seals below the locking ring and the motor housing are properly positioned to prevent leaking.
3. When tightening the locking ring, make sure that you tighten it fully so that the locking arm (shown in the photo to the left) is locked behind the tub. If the ring is not fully tightened, the locking tabs will not align properly with the slots in the wiring cover.
Hope this helps...please post back for further assistance.
on Mar 06, 2011