I had the original factory acculift actuator and after a while I found it was very slow to the extent that I had to help it manually to even open the sundeck. So I concluded it was giving up and I went out and bought a new hardin marine from cp performance. Installed it and I still need to help it manually to open the sun deck. Now I'm clueless, what is wrong. Is there a factory relay that could have gone bad? Anyone with any ideas?