bandit2013 said:(Can't claim the Mark V footswitch works all the time as it has issues so I do not use it).
I had problems with the footswitch on my Mark V also. It would cut out often, no lights on and the switches didn't work. I ended up opening the footswitch and resoldering the wires to the connector. It worked flawlessly after that. I know this is an old Post, but I thought maybe it could help.