A/C not blowing cold.

You will really want to check the pressure to make sure it's fully charged. That's probably the issue. You can also bring it to a shop for them to hook up the machine and they will know right away. Alex

Have the charge checked, it is probably low.

Sounds simple but recheck HVAC temperature settings .. Possibly a problem within the temperature selector / baffling inside HVAC case. *Hands-on* testing will be required.