whats wrong with my air I get nothing but straight head when air is turned on on 2002 Kia Optima

I don't really know bout this car cause its used just trying to get this car together

Asked by for the 2002 Kia Optima
1 answer
check fluid level and maybe you need thermostat if coolant hoses not hot after running engine for 15 minutes or your blend door not working.