Have you adjusted the thermostat/slider in the refrigerator? Also, were you maybe parked with the side with the refrigerator facing the sun? These refrigerators can take a long time to cool off - if you can, try cranking it up the day before you leave and try putting cold stuff in them as opposed to room temp items. Gas seems to cool them more quickly.
Happy Camping! ///// Richard D.
2006 4x4 Ford 250 SD / 2007 Flagstaff 827 FLS
One very patient wife and one furry child who travels with us. Forty-two years of trailering and camping, and I still have a blast.