Low on freon, a weak compressor, or a restriction in your metering device.
most likely has a freon leak , or a control problem causing heat to turn on, or if you have a heatpump the reversing valve has a problem Refrigerant is probably low.
No. Even in a strong wind, 70 degrees would still feel warm.
If you mean how an air conditioner that goes in a window will blow warm air outside then that is because an air conditioner basically takes in air from outside and pulls out the cold air which then blows into your house then the warm air is released back outside.
It depends... It's well-known that sound travels faster through denser (cold air has higher density then warm) media. So if you have a situation when sound travels through either cold or warm air. The speed of the sound will higher in the cold air. From other side if you have air which of course possesses certain temperature which is moving the sound speed will depend on both temperature and the vector of velocity (direction where it is blowing and and value how much it's blowing).
Cold to warm
The electric heating elements are probably turned on.
This means your Jimmy is pregnant with a Jenny.
It's due to your car not having freon go and get it charged. The cold air is from you driving!
if the compressor is Running you are low on freon, if its not then you have a electrical problem
low on refrigerant or the compressor isn't running..
My refrigerator is not running cold nor is the freezer. It is blowing warm air.
The cold and warm water mixes and it forms a gulf stream and it starts to flow.
May need to be recharged.
It could need recharged or the damper might not be closed.
crankshaft sensor
compressor not working or loss of refergerant are possibilities, more common problems are temp adjustment
blowing cool air, is the air only in your mouth... warm air comes from your lungs. temperature also varies by how open your mouth is while blowing air out
smelled electrical burn now central air is blowing warm air non stop