Washing machines stop filling with water when air pressure in a hose reaches a certain point.
The bottom of the hose is attached to the bottom of the tub. On older machines the top of the hose is attached to a diaphragm that pushes against a switch. As the water in the tub rises so does the water in the hose, which pushes the air in the hose against the diaphragm which in turn pushes against a switch which stops the filling.
But on new washers the top of the hose is attached to a solid state sensor mounted on a circuit board which has no user adjustments.
Is there a way to adjust the air pressure in the hose? The washing machine has several water level settings so the sensor still has to detect different pressure levels. IOW it cannot be set for a fixed pressure. For example how would you lower the pressure by 10% all the time in order for each setting to fill 10% higher?
Is there any reasonably easy way to accomplish this?
Thanks for any suggestions.