Bow thruster not fully closing

Have you tried adjusting the limit switches inside of the actuator arm ? There is one each for up and down. However, you should check that the door can freely close without interference. This can only be done with the actuator arm disconnected. If the boat is in the water it may be difficult to check. Someone would need to get under the bow to check it, maybe with the assistance of a man on deck with a line under the door to pull up with. 

Ok, I see. I had a problem a few years ago where my thruster did not fully close. It was because the lever that pivots the thruster had come loose from the tunnel bracket. The bracket actually broke where the lever attaches. As a result, even though the lever was fully pushed, the bracket would slip and hang down below the hull. See photos.

We had Poly bag caught in ours that caused similar symptoms.... As soon as bag retrieved worked fine again!

Hi Lawrence.  I’m wondering, when you were pushing the door closed from below, was the steel lever arm also moving with it inside the bow. If not, then it seems that the bracket and arm have come loose from each other. The other possibility is that the door itself has come loose from the thruster tunnel. It is held by springs and wires. The door normally is held tightly to the tunnel all the time whether UP or DOWN. By the way, how much does the door hang down when fully up?