Proper Operation
Learn how your appliance is supposed to operate so you can determine if it is malfunctioning.
This page contains affiliate links. For more information visit our
FTC disclosure page.
- Visit our sponsor for parts:
Water Level Control
The amount of water in the tub is determined by the water level control.
A plastic air chamber called an "air dome" is attached to the side of the outer tub, down near the bottom (Figure 1). As the water fills the tub, some of it flows into the air dome and compresses the air there. The pressurized air is carried up to the water level control switch in the control console via tubing.
The air pressure presented to the diaphram in the level control switch is porportional to the water level in the tub. The compressed air moves a diaphram in the water level control switch which is positioned corresponding to the water level control knob setting on the control panel. If the knob is positioned for a low water level, the diaphram only has to move a very small distance before the switching action takes place, shutting the fill off. There must be no air leaks in the path between the air dome and the water level control in order for it to sense the water fill level.
An electrical current (Figure 2) flows in one of two directions through the level control switch: (1) to the water mixing valve solenoids via the water temperature switch to permit water to fill the tub or (2) to the drive motor and agitate controls to enable the wash cycle to begin. Therefore, when the diaphram in the water level control causes the switch to move from position (1) [fill] to (2) [wash] the water inlet valve closes, stopping water flow through it and the wash cycle begins.
Click the banner to visit our sponsor to purchase parts:
