I have a 2006 Montana 5th wheel. I just took I out of storage. When I attempted. To get the Dometic refrigerator going I found that the upper freezer would quickly cool to 21F. But the lower refrigerator compartment had absolutely no cooling. I confirmed the gas heater was fully functioning. It presents the same. Problem on AC or gas. Ithe RV is totally level. The condenser fins are totally free of debris. I'm stumped. If you can help I appreciate it we are expecting to depart on a cros country 3 month trip as soon as I resolve this project blemish.