Check the temperature setting is not too high so that the unit does not switch on to cool the air. If it is set normally then the unit has a fault.
Repairing an air conditioning unit is not a Do-It-Yourself job. The best advice anyone should give you is to call a licensed Heating Ventilation and Air Conditioning (HVAC) technician to check the unit for you.
If it is faulty it can then be decided if it is worth spending money to repair it or if it makes more sense to replace it with a new one.
Your outside AC unit may be blowing cold air because it is functioning properly and is working to cool the air before it enters your home. This is a normal operation of an air conditioning system.
If your air conditioner is running outside by not blowing cold air inside through your vent, your indoor coil is frozen. You will need to turn everything off and allow the unit to thaw out.
check your thermocoupler. It will not let the gas flow if it is faulty. Easy fix too.
Your AC unit may be blowing cold air outside instead of inside your home due to a possible issue with the air ducts or a malfunction in the system that is causing the cold air to escape before reaching the inside of your home. It is recommended to have a professional HVAC technician inspect and repair the unit to resolve the issue.
You mean the outside unit is running and blowing but the inside unit is not blowing? Shut it off! Who ain't blowing? Elaborate please..
why does the fan still run on the unit after it cycles is over. but it is blowing hot air not cold
I suppose when you say " the air stops blowing but the unit is still running" you mean the air that is blowing is not cool. If so, then the thermostat is faulty or needs to be set a lower temperature setting. If the unit blows cool for a few minutes and not cool for a few minutes, then cool again, etc. (called short-cycling), the unit is low on freon.
There are a few reasons why a central air unit is not blowing cold air. The coils may be dirty, the unit may need freon, or the thermostat could be broken.
Sounds like your system is a heat pump. When a heat pump cools in the summer, the inside coil gets cold and the outside coil gets hot. When the heat pump heats in the winter, the inside coil gets hot, and the outside coil gets cold. It sounds like your heat pump is stuck in heating mode. Check your thermostat to be sure it didn't accidentally get switched to heat. It could be the reversing valve inside the unit is stuck, or an electrical control is broken, forcing the reversing valve to stay in the heating position. Perhaps a call to the serviceman is in order!
Check upstairs heating unit.
Your average A/C unit blows heat through all vents.
the compressor is not running. Check your breakers.