Customer Questions and Answers for Water Level Pressure Switch (Washer) by Frigidaire

Hello Craig. The pressure switch 134762000 is mounted to the center bar under the top of the washer and controls the water level in the washer. The pressure switch is made up of a single pole double throw switch, but only contacts 1 and 2 are used, that is controlled by a bellow inside a sealed chamber. The chamber is connect by a hose to the air bell located at the bottom of the washer attached to the drain boot. Electrical power is applied to the pressure switch whenever the contacts of the door switch are closed. If the water level is below 1/2 inch from the bottom of the spin basket, contacts 1 to 2 of the pressure switch close applying power to one side of the hot and cold solenoids of the water valve and the bleach and softener solenoids of the dispenser. The other side of the solenoids are connected to neutral by a relay contacts on the control board. When the cycle calls for water, depending on the water temperature selected and the increment of the cycle, the control board connects one, two or three of the solenoid coils to neutral activating the water valve or dispenser solenoids. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps.http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html