D&S 5000 in position treadle,

[Sparkles Carwash]

My in position treadle stop does not come all the way up and the wash will not work. Is it the cylinder or the Mac solenoid? What is the model #of the solenoid ?

 

[MEP001]

Just check for air pressure going to the treadle. It's usually a small rock caught in the lift plate.