RE: Alfa AC Unit
The unit is very easy to remove from under the trailer. Take it to a reputable A/C shop and have it checked out. Sounds like you may have lost some or all the refrigerant charge. One thing to do before removing the unit. Park your trailer on at least 3"-4" boards and be prepared to lower the front down as the clearance when sliding the A/C from under the trailer is very close. Good luck!
