Why is my Nissan Qashqai's air conditioning not working?

I've noticed that my air conditioning is not blowing cold air like it used to. What could be the problem and how can I fix it?

It's possible that your refrigerant levels are low, which can cause the air conditioning to not work properly. I suggest taking it to a mechanic to have it checked and refilled if necessary.

It could also be an issue with the compressor or a clogged filter. Have a professional inspect these components and replace them if necessary.