The wizard was blinking "Wash Selection" on the Unitec. Also, the "Please Wait" sign was lit and the wizard said to "Exit" and "Have a Nice Day". So I went inside to turn off then reset the wizard. This did not fix the problem because when I put in money and started the wash it started without a car entering. Which meant that an eye was bad. 
This has to be old….. But its your treadle eyes