W10339326 Water Level Pressure Switch for Whirlpool Washer
What does the W10339326 water level switch do?
This switch monitors air pressure in a pressure tube connected to the wash tub to detect the water level during fill. When the tub reaches the level the washer's control expects for the selected cycle, the switch signals the control to stop the fill and move on to the next step. It does not add or remove water itself — it only reports water level so the control can decide when to stop filling.
Common symptoms of a failing water level switch
A washer may overfill past the normal level for the selected cycle, or it may stop filling before reaching the expected level. Either symptom can be consistent with a pressure switch that is stuck, misreading pressure, or has failed electrically — though a kinked or disconnected pressure tube can cause the identical symptoms without the switch itself being at fault.
How to check the W10339326 water level switch
The switch is an electromechanical component behind the washer's control panel. A technician can inspect the pressure tube for kinks, cracks, or a loose connection before assuming the switch itself has failed, then check the switch's wiring and continuity with a multimeter once power is disconnected. No manufacturer-published resistance value is confirmed for this exact switch, so a specific ohm reading is not stated here.
W10339326 technical notes
Sold under the Whirlpool platform across several associated washer brands, including Maytag, KitchenAid, Jenn-Air, Amana, and some Kenmore-branded models built on the same platform. W10339326 is listed as replacing Whirlpool part numbers 3950420 and 3366845. These replacement relationships are corroborated by multiple parts-market sources, including Canadian distributor data.
Installation & safety for this water level switch
The switch is mounted behind the washer's control panel, so replacement requires removing the control panel to reach it. It connects to the tub through a dedicated pressure tube and to the control through a wiring harness; some replacement kits include the switch, harness, and mounting gasket together.
Disconnect electrical power before removing the control panel or working on the switch or its wiring.
W10339326 error codes
Model-dependent related code: F3E1 — Water Level / pressure-sensor error. Whirlpool describes this fault as the washer being unable to detect the water level, or the pressure-switch signal being missing or out of range.
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