Originally Posted by Cornelius
I had the same problem with my 2010 Georgetown dash A/C. The first Ford dealer could not find the leak, and just recharged the system. That did not last very long.
Later I took the motorhome to another Ford dealer who does a lot of F-53 chassis work, and they knew exactly what the problem was. The main seal in the compressor leaked, and had oil visible on the exterior. They replaced the compressor and recharged the freon. The service tech said it is a common problem on the F-53, but Ford had not issued a service bulletin on it. Both repair visits were covered by Ford's 3 year chassis warranty.
Wow, makes you wonder where they get their mechs from. That would be the first place I would look...stick the sensor around the clutch area on the compressor first, then turn the ac/fan on and stick the sensor in the vents, then go from there.