Laser Wash 4000 Exit Door Problem

[Piper451]

Having an issue with the exit door on a 4000. Car enters, receives the wash package, exit door opens, car leaves and the exit door stays open. It will eventually close after it times out at 2 minutes. Can someone point me in the right direction as to how to correct this problem or where to look for something "broken"? 2 minutes is a long time when its -10 outside. Thank you in advance.

 

[bert79]

We've had this problem intermittantly too, although not in a while. Check the banner eyes that see the back of the vehicle crossing the threshhold. At -10 they are definitely prone to an icy coating that can blind them from seeing the back of the vehicle. We close our laser when the high for the day is 15 degrees or below. Just too many issues when it's colder than that. One other thing is that we have found that it happens mostly at a certain time of year when the sun is at such an angle to possibly "blind" the banner eye or the eyes of the virtual treadle. Just some thoughts for you. I'm sure others will chime in with suggestions that may help me too.

 

[Piper451]

Thanks for the response Bert. I haven't noticed any icing on the sensors as it hasn't been consistently below zero but I'm hoping to figure this out BEFORE icing in general becomes a problem. Thanks again. Looking forward to some further input.