Mach3 F5 not working

#1

I have a crossfire 2x2 table using Mach3 it seems like the F5 button is not working it is stuck in the on position any help would be appreciated

#2

Is the key on your keyboard mechanically stuck ON ?

@Richardwoodard Welcome to the forum

#3

The relay is probably stuck (failed) in the control box.

#4

Thanks how do I go about getting it fixed

#5

Are you sure that’s the problem? could also be a short in one of the cables. I would troubleshoot further to find the cause.