How to Diagnose a Washing Machine Water-Level Turn Off

Stop the washer and unplug the power cord.

Take out the screws in the sides of the control panel.

Insert the edge of a flat-blade screwdriver under the front left and right corners of the control panel to pry up the panel and unlock it from the retainer brackets underneath.

Tilt the control panel backward and look inside the cabinet to locate the water-level turn-off switch, which is immediately behind the water-level control knob on the front panel.

Remove the two wires from the turn-off switch, pulling on the metal clip at the end of each wire. Hold the two wires against the side of the appliance cabinet and secure them temporarily with a piece of masking tape. This keeps the wires from falling out of reach.

Pull off the tube attached to the turn-off switch and tape the tube end to the inside of the cabinet so it cannot slide out of reach.

Push one end of the new plastic tube onto the 1/4-inch nozzle on the turn-off switch.

Attach the clips on the end of the ohmmeter to the terminals on the turn-off switch. Dial the ohmmeter to the lowest resistance setting, typically "Rx1" on the dial control.

Blow into the opposite end of the tube attached to the turn-off switch. If the ohmmeter displays a slight resistance reading and beeps, the water-level turn-off switch is working properly. If the meter displays zero, the turn-off switch is defective.