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. But in the meantime, let’s talk about what may be.

This issue can also arise from a faulty. These include a lack of refrigerant, debris buildup inside the unit, or an electrical. Webthere are several possible causes for why your semi truck’s ac may be blowing hot air.