Turn off your Kenmore dishwasher and shut off the power supply by flipping the breaker switch that controls the dishwasher circuit to the "Off" position.
Open the dishwasher door and slide the lower dish rack out of the dishwasher.
Locate the circular float assembly on the floor of the dishwasher tub. Pull the cap off the assembly. If there are screws holding the cap in place, remove them with a Phillips screwdriver.
Pull the float turn component out of the compartment.
Fit a new float turn in the old one's place. Push it down into the compartment until it snaps in place.
Replace the float cover and dish rack.