I've had an issue with the 2012 3750FL for about a month now. The auto leveling function quit working and the gear will not retract, it just extends so to bring the gear up I had to hire a technician at my cost to figure it out as the supplied documentation was very poor and did not explain the entire process. Camping World was of little help although they did try but the suggestions they said would not have helped and they didnt recommend opening the individual valves for each of the landing gear segments and manually operating the pump (as the correct documentation says to do).
CW does not have mobile service so with poor documentation and us having to move that day (Memorial day weekend) I had no choice but to hire the tech who jumpered the solenoid to provide 12v for the retraction using the control panel. We full time so bringing the unit in makes things difficult so Ive been researching and came accross this item on Lipperts website:
I think this is interesting as my unit is wired the old way and now the control board is probably fried. I guess I could verify to see if any signal is being generated from the conrol unit now that I have found the wiring schematic. Why did they not catch this at the PDI? the PDI tech told me he was told to replace the hydraulic fittings due to a notice but not this? I dont think its that hard to rewire as I've studied the system but having to bring the RV into the dealer and deal with CW just sucks.
I dont know if this has been posted before but if you have a unit built before June 4 2012 this might pertain to you.