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I have a laser 4000 and there was a power outage at my location. The wash did a hard reset and now two of the functions I used to have are not available. I used to have two low pressure soap options now I have one low and one high pressure soap options and the dryer is set as a rollover dryer...

This post was a big help. I was having the same problem and it turns out my mid limit switch needed adjustment. The sensor was running a little further away from the flag on the driver side pass than on the passenger side.

I am having problems with what seems to be random width eye measure failure. I have replaced the sensor. The error pops up when the sensor is lit and appears to be aimed properly also the input 22 is lit. Looking for suggestions on what to check next.

I am looking for a diagram of how to properly plumb a self serve system. I realize there may be some differences of opinion but I have an older wash and want to make sure that I have the best setup. Mainly concerned about the order of check valves, do I need an accumulator, am I missing a part...