Shut off the circuit breaker that supplies electricity to the dishwasher.
Remove the screws that secure the kick panel to the bottom of the dishwasher. Set aside the kick panel.
Locate the float switch which is directly under the float. Use a flashlight to illuminate underneath the dishwasher to help you find the switch.
Pull off the two wires connected to the float switch using a pair of needle-nosed pliers. The wires are attached with clips that pull off the terminals of the switch.
Unscrew the two screws that secure the float switch to the bracket attached to the frame of the dishwasher. Remove the float switch from underneath the dishwasher.