It helps determine the level of water in the washer.
Water level sensor switch washing machine.
Lg electronics 6601er1006a washing machine water level sensor pressure switch.
More water that enters the tub more pressure is applied against the switch.
Initially timing was used to estimate the amount of water for various washing machine cleaning cycles.
The air pressure level is measured either by a pressure switch or a pressure sensor.
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As the water fills the hose while tub is filling it will push the air against a diaphragm inside the switch.
Whirlpool ge electrolux and others use an air tube connecting an air dome on the tub to a pressure sensor with a physical diaphragm or transducer that feels the water level increase as an increase in pressure inside the air tube.
The water level switch sends power from the timer control to the water inlet valve and the temperature switch each time the tub needs to be filled during a wash cycle.
The water level switch is connected to the console with a tube running down into the machine.
Today many manufacturers sense the pressure developed in an air dome that is referenced to the water level and provides a much more accurate measurement.
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This part is located behind the control panel.
It does this through a plastic tube which runs from the switch in the control console down to the side of the outer tub near the bottom.
Water level switch function.
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Water level sensing in lg washers is done differently from how you may be used to seeing it done in other brands.
Washing machine repair how to test the water level switch.
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T he water level switch aka pressure switch senses the water level in the wash tub.