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Are you referring to automotive air conditioning systems?
It could be a faulty compressor. It could also be a malfunction of the air door, which mixes air from the heater and air conditioning to provide finer temperature control.
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∙ 13y ago
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Why is your central air blowing warm air?
low on freon
Why is my York air conditioner blowing warm air?
if the compressor is Running you are low on freon, if its not then you have a electrical problem
My BMW 318i is blowing warm air when the air con is turned on can anyone tell me whats wrong?
could be elctrical not turning on compreesor could just be out of freon
Your AC blow only warm air It is a 2000 Xterra Also while it is blowing it makes a whining noise?
If the compressor is running, the blower is blowing, and there's no cold air, you need freon. If the whining is from under the hood, the compressor may be damaged. That's what happens when running without freon.
How you would know if your car need freon?
the air coming from the vent is warm
Why would a 2000 Saturn heater only blowing warm air?
it is a heater. heat. it blows heat. warm air
Why when your Mazda Protege stops at a light the AC starts blowing warm?
It's due to your car not having freon go and get it charged. The cold air is from you driving!
Why would the AC on a 1996 Jaguar XJ6 suddenly start blowing hot air if the freon compressor is OK?
As the Freon level in your air conditioning system gets lower the cold air will become warmer and warmer. You will need to recharge the system with Freon.
Why does my Air conditioner starts by blowing cold air then warm air?
Low on freon, a weak compressor, or a restriction in your metering device.
Air conditioner is only blowing cool air but refrigerant is full of freon. Heater not blowing hot air either?
Check the temperature control cable
Why is the air conditioner in a car blowing out hot air?
it simply means you have to add freon to ur air conditioner....you can buy freon at any auto parts store.
Why is your car not blowing cold air?
Could be many reasons but the most common would be low on freon due to a leak in the system.
