i had the same problem, AC was blowing warm-hot and i got tired of it so me and my dad looked at it. Came to the conclusion that none of my relays for either the ac or the compressor idk which it was but we got the new relay in and wala, everything was working but ummm still no cold air. turned out my pressure was in the red section of malfunction or broken parts. well my dad let out all the coolant and pressure and then we refilled it till it said there was enough coolant inside the A/C system and it started blowing colder air!