Recent content by spot Free Car wash

I already changed the timer amd yes it is the timer. I changed the rotary switch too and still is doing the same. The timer is displaying error.

I have a 6 bay self serve car wash in Killeen Tx. However l haven't been able to find someone that can help me fix one bay. The clock keep displaying Error and lt does do anything. I have a 8 switch rotary switch. Anyone knows someone that can help me with this? Thank you so much in Advance...