Our unison system crashed and evidently the programming was erased. It is possible a power spike of somekind ( it's completly unregulated power coming in to the system) caused the fatal error? I know it's not a 100 precent, but has anyone ever heard of this kind of problem? Many thanks Chris
The only drawback with leaving the disk like that is that, on occasion, it has been known to catch the back side of the door and prevent the entire door from opening.