I have a 2 year old 25' classic. Never had any problem till now, the tongue went up, after hitching to silverado, then I could not get the tongue to go down to unhitch. (it goes up, but not down). Power is still available, because it goes up, but I get no response when I pull switch forward. I'm going away for the week, trailer is on jack stands, but not to the level I need. Plus I know if I tried to back the truck up (if trailer at right level, I'm afraid the jach stands will be puched over.)...