Took trolling motor out yesterday for second trip out..thought I would use the foot control and get used to it...control worked for about 10 min then just quit working. Can't turn on or turn either direction with foot control hand held works great..have installed new batteries even tho others were good 1.5 volts have tried to resync but to no avail...any ideas on what could be the problem and is this something of a on going problem?