Mercury 250 ProXS V-8 Serial# 3B175948
I was in my barn(fortunately) and heard then saw my motor trim all the way up on its own. The trim motor continued to run until I held the up or down position on any of the trim switches
(motor, shifter, blinker trim) then the motor would stop running. I disconnected then reconnected the cranking battery and the trim functions returned to normal. Is the problem resolved or do I need
to see about having the relays checked or replaced? No fault codes on vessel view. I am keeping the battery disconnected when I'm not there. Thanks Sandy