Jeep Wrangler AC temperature auto control module flashing and only blowing hot air, possible need for replacement and computer upgrade on Jeep Wrangler

Some Jeep Wrangler owners report experiencing issues with the AC temperature auto control module, including the module flashing and only blowing hot air. Common causes for this problem include low or overcharged refrigerant, compressor malfunctions, and dirty condenser or evaporator coils. Additionally, some owners find that recalibrating the AC/heater control module is necessary whenever an actuator motor or the control module is replaced. Concerns also arise regarding the blend door actuator, as replacing the passenger side actuator may not resolve the control module issue, which can vary by case. The blend door itself plays a crucial role in mixing air from the heater core and AC, and lack of use can lead to problems affecting cabin temperature control. Manual inspection of the blend attachment can help diagnose issues, as turning it may indicate problems with the blend door. Furthermore, when the system fails to function properly, warm air may blow due to ineffective heat exchange, potentially leading to compressor failure, especially in warm, humid conditions. In rare instances, air may not be diverted correctly, causing it to be stuck on specific vents, although these issues may resolve themselves after a short period. It is advisable for owners to thoroughly diagnose the underlying issues before opting for a replacement or computer upgrade to ensure a cost-effective solution.