If the product was warm/hot this can cause havoc. I got 43K lbs of watermelons from GA right out of the dirt on a 98° day, and it took over 36 hours for the older Carrier unit to cool the box down to +55°. It was throwing codes every few hours, either "box temp out of range" or "high discharge pressure." I was told the older Carrier units are more tempermental than the TK's.