How do I troubleshoot a faulty air conditioning system in my Vauxhall Zafira Life?

My air conditioning system is blowing warm air and not cooling the car. What steps should I take to diagnose and fix this issue?

First, check the refrigerant levels in your system. Low levels can cause the AC to not function properly. If the levels are low, you may have a leak and will need to refill the refrigerant. Also, check the fans to ensure they are working properly. If they are not, they may need to be replaced.

If the refrigerant levels and fans are fine, then the issue may be with the compressor. The compressor is responsible for compressing the refrigerant and circulating it through the system. If it is faulty, it can cause the AC to blow warm air. In this case, the compressor will need to be replaced.

Another possible cause of the issue is a clogged or dirty air filter. This can restrict the airflow and prevent the AC from cooling properly. Check your air filter and replace it if it is dirty. This is a simple and relatively inexpensive fix.

If none of these solutions seem to be the issue, it may be a more complex problem with the AC system. In this case, it is best to take your car to a certified mechanic for a thorough diagnosis and repair.