My Razor is acting up and I can't seem to figure it out. The last few days it will periodically quit spraying through the arch. When a customer would call and complain I would go back and watch the camera and it would be doing dry passes on presoak. Today a couple of times it went through most of the cycles fine but after rain X it was suppose to do high pressure rinse and it went around the car dry followed by spot free with nothing coming out. So it does it on high and low pressure passes. I took the change over solenoid apart on the carriage and cleaned it out tonight and ran high pressure through it with the plungers removed to make sure there was no trash in it. (Tech support thought maybe trash was keeping it from switching over which might be making the pump dead head). I put it back together and let a car go through, it did two passes of presoak and then high pressure arch came on but when the arch got to the driver's side mirror it just quit spraying but the pump was still running. I ran to the pump room and the pressure gauge was about 1400 when it is usually 1200psi. I went back to the Bay and the arch switched to the flex pods to apply high pressure wax and it sprayed fine and finished up the wash with spot free fine. Tech support is kind of stumped on this. I shut the wash down till I can figure it out. Anyone have any ideas?