Why hot air when cold air is on in t4?

In a T4 air conditioning system, hot air can circulate when the cold air is on due to several factors. One common reason is that the system may be experiencing a refrigerant leak, preventing it from cooling efficiently. Additionally, if the air filter is clogged or the evaporator coils are dirty, airflow can be restricted, leading to inadequate cooling. Lastly, improper thermostat settings or a malfunctioning compressor may also cause the system to blow hot air despite being set to cool.