2010 volvo vnl

Have you ever fixed it? I started getting that same problem.

 

Is this unit equipped with auto temp control in the cab? (Does your temp selector show only hot and cold or does it show numerical values).

 

If it's just the bunk unit that freezes up, replace the bunk expansion valve. If both the front and rear freeze up, it's either low on Freon or the compressor is going bad.

 

Guys
Had same issue not to long ago, we did the whole new system and still had the same problem, inboard computer had a message about erratic communication, same tech told me to chamge the comtroler or computer and that did the trick no more issues on AC so far
Hope this helps
New controler on volvo dealer 420 box more less and 4 screws out and that it