Customer Questions and Answers for Pcb (Mems) Sensor by Whirlpool

Jeff, When under "normal" operation, the water level switch WP34001324 inputs to the control board determines when the drain pump will run. If the switch doesn't reset to the empty position or senses suds in the water, the control will send power to the drain pump, to reduce the possibility of a "flood" or will fill and drain to remove the suds from the tub. You'll also want to check the air tube between the switch and the tub, if it's clogged, kinked, twisted it will restrict the air flow and cause the switch not to reset. It could also be a faulty relay on the control board, but check the switch and air tube first.