pdq m5 illegal move extent

[Liberty]

I have a pdq m5 i am have a error that says illegal move extent
when trying to move bridge from rear of car to front.It will not allow it to move
i can move it any other position.Any suggestions?THANKS MIKE
LIBERTY CARWASH CHICAGO IL.

 

[APW]

Check your Proxes on the bridge and make sure they're not messed up. Sounds like machine thinks it's already at the front so it can't go any further. I believe there are two that read the front flag.

 

[Liberty]

Checking prox

check your proxes on the bridge and make sure they're not messed up. Sounds like machine thinks it's already at the front so it can't go any further. I believe there are two that read the front flag.

i will check in morning and get back to you
thanks for response

 

[Liberty]

I changed top prox on the bridge that reads end of travel for the bridge
I was then able to move bridge in any direction.Seems to be working properly
thanks for your response hope thats it electronics can drive you crazy.