Fantom S pad problem

[darcymicro]

MY Fantom s-88 works great except for one pad that occasionally does not respond when touching it, and it also occasionally sounds by itself. Also, sometimes when rhythm mode is on it will change by itself to the non working pad rhythm, or shut off the rhythm altogether in mid song. Happened mid gig and yikes, tried to reboot but problem still there... Any advice would be appreciated