Last fall the power trim went up just fine. When I went to put the motor down in the water for the winter, nothing. I figured a relay went bad. So I finally went to change the relays and the electric motor worked, but the outboard neither went up or down. I've done some research and figure it may be low on fluid. I will be checking it this weekend, but if that is not the issue; does anyone have an idea what I should look at next?