Refrigerator Troubleshooting/Charging

[msbailey6]

How does one go about locating the freon charging port on a sub zero fridge located in a Prevost?

Thanks,
Mark Bailey

[Joe Camper]

Have u pulled it out yet? If there r ports in place follow the lines from the compressor if they aren't obvious when u pull the cover off the back.

[Gil_J]

Many refrigerator/freezers, even high end ones, don't have factory installed ports. If charging is needed the ports are installed. I'd Google sub zero low freon and see what others have experienced or call sub zero.