There are a few reasons your air conditioner might be blowing hot air out of the vents or the condenser. If the outdoor part of your air conditioner also called the condenser is blowing out hot air your air conditioner is operating normally. The air conditioner does not blow cold air into your home it actually works by removing hot air and blowing it outside. However, If there is warm air blowing inside your home through your vents then there are a few things you may want to check before calling a technician.
Clean Around Your Air Conditioner
Your air conditioner could be blowing warm air because there is not enough ventilation around the condenser. If your have plants, bushes, and vegetation around the outside air conditioning unit clear about two feet of space away around the unit so that it can expel hot air instead of recirculating it into your home.
Check Your Thermostat Fan Settings
You could have warm air circulating through your home because your fan might be set to on instead of auto. When your fan is set to on it will run continuously even when your air conditioner has reached its target temperature. This means that air is only circulating instead of being actively cooled at that point. When the fan is set to auto it will only be running and blowing air when the air conditioner is actively cooling. One benefit to having your fan run continuously is that your indoor air will be cleaner and more pure if you have an in home air cleaner installed. This may require you to check your filter more regularly as air will be continually passing through it.
If, after you have checked both of the above issues and hot air is still blowing through your vents into your home, call a certified technician and have your air conditioner repaired.