You have 2 relays that control that. One for up and one for down. The up relay is probably shot (fairly common). You can swap them to verify that.
I have 150hp mercury with tilt and trim this weekend i went out and when i got ready to leave my trim would not go up. down would work up would not. i would appreciate and help on what to check to fix thisplease feel to email me or pm thanks a lot hope to hear soon crappi-little
You have 2 relays that control that. One for up and one for down. The up relay is probably shot (fairly common). You can swap them to verify that.
Fair Winds and Following Seas
Bill H. PTC USN Ret
Chesapeake, Va
replace silinoid with the blue wires going to it, but if u have multiple trim switches check one of the others first it could be that switch. Always remember blue as sky (up) and green as grass (down). hope this helps