Your ac system could be suffering from a poor ac. Your truck ac can blow hot air because of issues in the condenser, fault in the cooling fan, electrical fault, compressor, and reduced levels of refrigerant. I am trying to figure out why my ac in my semi truck sleeper blows only hot air.
The ac system can generate heat or blow cold air into. An evaporator is used on freightliner trucks as a heat exchange medium to move the heat generated by the system away from the air conditioning unit. Cut off the coolant to the heater core under the dash.
But in the meantime, let’s talk about what may be causing the. Why does my truck ac blow hot air? The cab area works fine but the air Your semi truck ac is still blowing, but the air isn’t cold.
If your ac gets cold after that point, take a look on the right side of the engine compartment, by the firewall. You know you’re going to have to stop soon for repair. The most common problem with. Refrigerant is essential for cooling the air circulating through your truck’s.