Air Conditioning blows hot

My Air Conditioning is blowing warm. What could be the problem? I have a 2006 Chevy Truck with 5.3L engine. It has climate control.

1 thought on “Air Conditioning blows hot”

  1. Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
    Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary.

    Electronic Blend Door Actuator is not functioning which would only allow warm air to pass through vents. The ac lines going into the firewall would be cold if this id the case.

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