Turn off the power supply to your Whirlpool dishwasher from your kitchen circuit breaker.
Open the dishwasher door and pull the lower rack all the way out of the dishwasher.
Remove the screws from the float assembly cover behind the lower spray arm using a Phillips screwdriver.
Lift out the float assembly part and inspect it for any damage, such as a cracks or broken pieces.
Install the new float assmbly part into the same position at the bottom of the dishwasher; by pressing down on the float it will snap into place.
Place the float cover back on and reinsert the screw to the cover. Slide the lower rack back into the dishwasher.
Close the dishwasher door and turn the power supply back on from the kitchen circuit breaker.