Customer Questions and Answers for Dishwasher Water Level Switch by Whirlpool

Marlene, You will want to check to make sure that the spray arms are not clogged or cracked which would cause wave action in the tub of the unit. If the unit does not stop filling with water and overflows then you would want to check the float switch. Check the continuity. If the switch checks ok then it may be the spray arms or the water valve allowing water to continue to come into the unit.