The Float Switch Kit is an OEM part for Whirlpool dishwashers. It includes the float and the switch mechanism that monitors and controls the water level inside the dishwasher. The float switch ensures that the dishwasher does not overfill by signaling the water inlet valve to shut off the water supply once the appropriate level is reached. Causes of a bad float switch can include debris or mineral buildup, wear and tear over time, or electrical failures within the switch mechanism. A malfunctioning float switch can lead to water overfilling, which may cause leaks and inefficient washing performance. Symptoms of a bad float switch kit include: Dishwasher overfilling with water Water leaks during operation Dishwasher not filling with enough water Error codes related to water levels This OEM part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.Part Number 8193506 (AP3138166) replaces 8268889, 8268891, 8545880, 8545946, 903948, AH557009, EA557009, PS557009.