How do I troubleshoot a malfunctioning air conditioning in my Kia Picanto?

I recently noticed that the air conditioning in my Kia Picanto is not working properly. It blows warm air instead of cold and there's a strange clicking noise coming from the vents. Can anyone suggest some troubleshooting steps I can take to fix this issue?

It could be a simple issue with low refrigerant levels. I recommend checking the refrigerant levels before taking it to a mechanic.

The clicking noise could be a sign of a faulty compressor. You may need to replace it if the refrigerant levels are fine.

Make sure your AC filter is clean and not clogged with debris. A dirty filter can prevent proper airflow and cause the AC to malfunction.