I have a 1998 regal bowrider, it has a merc engine and trim, my problem just started today, when i raise the lower end it works and you can hear the pump but when I lower it it just clicks from the hydraulic unit, I have topped up the oil and nothing , I have taken the wires off and cleaned them blue is up green is down and red for power I assume unit is making a clicking noise when trying to lower, it raises fine, I also tried jumping the wires at pump with the same result please help Cheers John