need help with trim it wont go down past ram jacks? all fluid is fine no air if you let on and off the button it will go down as if was leaking the moter is fine it keeps runing if you hold the button. that about all i can tell you.

I believe they are called actuator switches, they are electrical activated and control the up/down movement of the trim.

More info might help.  What have you tried so far to diagnose the problem?