Why aircon not cold? How to solve it?

If your aircon is not cold, it could be due to several reasons. One of the most common reasons is a dirty air filter that prevents proper airflow, resulting in warm air. Another reason could be a refrigerant leak, which can cause your aircon to blow warm air instead of cool air. Additionally, a faulty compressor, a malfunctioning thermostat, or a clogged condenser can also lead to poor cooling performance.