What should I do if my Nissan Micra's air conditioning is not working?

I recently bought a used Nissan Micra and the air conditioning seems to be malfunctioning. It's not cooling the car properly. What could be the issue and how can I fix it?

It's possible that the air conditioning compressor in your Nissan Micra is faulty. I would recommend taking it to a trusted mechanic for them to check and potentially replace the compressor.