![Pressure Switch with Whirlpool Washing Machine in the background.](https://sdapplianceco.com/wp-content/uploads/2014/09/pressure-switch-repair1-e1410984339904.jpg)
A washing machine’s Pressure Switch detects when the washer’s water level reaches the correct setting. It does so by measuring the air pressure inside of a small tube connected to it.
When a washing machine fills up with water, it needs a way to know when it’s full. A “Pressure Switch” in a washing machine does this by measuring the air pressure inside of a small tube that is connected to it. When the pressure switch breaks, the washing machine can potentially overfill and flood your laundry room.
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