Brand and model of A/C and thermostat will help us that do not own that brand of trailer.
Next, are you getting power to the bedroom unit, is compressor running, is blower running, is thermostat set correctly? Lots of info needed to help you.
Ken
Amateur Radio Operator.
2023 Cougar 22MLS, toted with a 2022, F150, 3.5L EcoBoost, Crewcab, Max Tow, FORMER Full Time RVer. Travel with a standard schnauzer and a Timneh African Gray parrot