But in the meantime, let’s talk about what may be. Webjul 10, 2017 · your semi truck ac is still blowing, but the air isn’t cold. Causes are often traced back to refrigerant leaks, a clogged.

This issue can also arise from a faulty. You know you’re going to have to stop soon for repair. These include a lack of refrigerant, debris buildup inside the unit, or an electrical.