The A/C should be able to maintain a delta Temp of about 15ºF between the intake and return air. If it's doing that, then it's performing as designed.
Outside temp, humidity, shade, etc. has a lot of bearing on how much heat the RV will gain during the day and unless it's exactly the same in past years the A/C will perform differently.
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Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
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