Alpha One won't come down

[New-2-Boating]

Hi Guys I have a 1990 Aplha One out drive that will not trim down. The trim up works and the trailer tilt button up works. When I trim down all I get is a clicking noise so i believe the solenoid is working. I tried doing a search on this forum and in my manuel but all the information seems to be on problems with the trim not going up. Can anyone give me some trouble shooting advice?
Thank you in advance for your replies.