Call Freightliner and they can tell you..also if there is not enough R134a in the system, the compressor will not turn on...make sure person put enough of it in the system...
Stuart and Stella Denning
2016 Entegra Aspire 42RBQ
The 3 Bulldogs (Daisy, Sylvie and Stashie)
2018 Equinox Diesel (TOAD)