Quote Originally Posted by Cray View Post
I would start by checking internals on motor. Brushes probably bad and armature could use a cleaning. Then on to actuator. Assuming it is a ball and screw set up, water intrusion could have caused some rust build up and should have a bearing at top and bottom of shaft. Haven’t seen much mechanical that can’t be repaired with a little patience and perseverance. A good dosing with some penetrating oil to start with and if that loosens it up then use some transmission fluid on it. If you get it working good then your next step is to find and install a limit switch.
Yeah, I'm pretty confident that the actuator can be repaired to the point it is serviceable. Not sure it will ever be fast or quiet but as long as it will trim up under power I will be happy. Iv'e never messed with a small 12v motor like this so that will be new to me but I bet there are plenty of videos on Youtube.