I have a cmc 35 tilt&trim for my kicker motor. Having issues with it. It started by sticking in the up position so I checked fluid level and it's good. Now it won't go up or down .pump runs but nothing happens. Hoping there's a fix. Really don't want to spend $500 on a new one.
Cmc tilt and trim problem
I've had issues with my Merc TT in past and have had to do some research on it. OMC may be a bit different but I'll pass along what I know. There are two colored coded wires going into the pump. I believe green for up and blue for down. If the pump runs in both the up and down commands your relays, wiring and pump are fine in that regard. If it only runs for one command you have an issue with one relay, most likely, assuming the motor tilts in one position. If nothing then relays, switch, pump or wiring.
Assuming the pump runs in both, and you mentioned the reservoir is full, then your pump is the issue. As was mentioned perhaps a seal or O ring is bypassing fluid. Very frustrating. Lots of good info on the net.
My first thought it was a relay. Not familiar with your CMC unit, but relays are cheap and easy to fix. I'd start there.