Working on a Hydrowash (WWWSE54240G2WWW model) that does not fill properly.
The pressure switch responds correctly to air pressure. The tube is clear.
Upon starting the cycle, the tub fills to the minimum, and enters the wash cycle regardless of the fill selector position. Reset of the switch has no effect.
Watching the fill selector when the tub fills indicates the controller is entering the wash cycle regardless of the fill selector (the plunger has not closed when the wash starts). This would also explain why the reset has no effect.
I do not see any error code on the motor inverter board.
How does the pressure sensor work - is it supposed to latch open upon reset, and 'trip' with air pressure? Can I see this, or is it internal? I see the plastic plunger move with pressure, but is there an internal piece that might be worn?