To cut a long story short, occasionally the garage door motor unit (Garador) does not respond to the remotes.  The wired switch always works, and it's not the
remotes as there's more than one.  When it's working an LED flashes on the unit to indicate a signal's been received, there is no flashing when not working.

I originally thought that the movement of the unit was causing a loose connection as I could fix it by jiggling the wired connections, but have come to realise that I can fix it just as well by lightly touching the co-ax socket on the back of the motor unit (presumably the socket is for an extended aerial lead).

I'm presuming that there's some static buildup that's knocking out the circuit board and I'm discharging it by touching the co-ax.

Has anyone had similar problems?  Am I nuts to run a cable from the co-ax to something in the garage that will earth it?

Thanks