Mine quit working a while back, and would not move. I could hear the motor try to move it but it was like something was jammed keeping it from opening. I took the chair out and the gear box on the motor had become inoperable. The grease inside had hardened and it would not allow the gears to turn. I took it all apart and thoroughly cleaned everything and re-greased the gears. I won't say that it is better than new, but it does now work. Maybe almost as good as new.
