Beat the Heat Ultimate Guide to Fix A/C Blowing Warm Air

6 CAUSES OF AN AC BLOWING WARM AIR · 1. CLOGGED AIR FILTERS OF THE AIR CONDITIONER · 2. YOUR THERMOSTAT SETTINGS ARE INCORRECTLY · 3. THE OUTDOOR AC UNIT IS TOO ... Seven Ordinary Reasons Your Air Conditioner is Blowing Hot Air · 1.Thermostat not working · 2.Power loss to the condensing unit · Broken and leaky ducts. There ... The air coming out of the vents is still warm and usually about 5 minutes into my drive my A/C is working to full potential. One common cause of an AC unit blowing hot air is a clogged or dirty air filter. Dirty air filters obstruct the airflow throughout your ductwork. The AC in our 2023 P2 suddenly started blowing air that seems to be at outside air temperature. We tried fiddling with the various climate control settings. It'll blow cool air when I use remote start, but once the key is in it starts blowing hot air, making me think it's an electrical problem. Low Freon, bad ac relay, bad ac condenser, and/or bad compressor. Tacomike18, ... You probably have an evaporator leaking. If you have rear AC you have 2 evaporators. They can both be leaking, The rear AC is easy to see. It goes through for 3-4 hours blowing cold air, then suddenly it blows warm (or more like room temp) air out and obviously isn't cooling. Your A/C blows warm air. A large restriction of refrigerant will also result in your A/C blowing warm air. Contrary to what you might think ...