I have a 1990 Fun Lite. It is currently stuck in the up position.
the pump is labeled:
hi Lo trailer company
serial # 585
date code LC
model # DB-0000114E

See the attachment for pic of pump. Don't know how to put pic here.

Where is the manual relief valve to lower the unit ? There is nothing that
moves on what I think is the relief valve

Attached Images

Hi Lo Pump.jpg (28.3 KB, 33 views)

Is your pump working? If so, try going up first before you pull the cable to lower.. You may be resting on the safety bar. If that is the issue, try doing the procedure in the below link. I actually added this to my quarterly maintenance checks. Good luck.

http://www.hilotrailerforum.com/f61/...o-trailer-129/

__________________
"Ruben"
2404T, 2003 2500HD 4X4 GMC Sierra SLT Crew Cab w/Astro camper shell and 2003 Chevy Tahoe LE 4X2
Far West Texas

ok. to start with the switch went bad could read voltage from both ends to center. It was being told to raise and lower at the same time. Replaced switch...still no down. Finally broke lose the manual lever and got it to lower manually. Started checking solenoid and it was clicking...opened it up and adjusted the travel to where top stared down and then backed off one turn. Everything working....Yes solenoid and pump will be hard to replace and very pricey...400 to 500 for solenoid. THANKS FOR HELP