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the make and model of the car would help in determining your problem
it is possible that this could be a problem with a switch that controls the position of a door that blends heat with cool air.aka-blend door actuator.
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Why does the temperature gauge act erratic goes from cold to hot quickly then drops to cool When in red there is no heat from heater When in cool there is hot air from heater?
Low coolant, check when engine is cold.
Why wont my heater blow out hot air only cool air on my 1999 Chevy Tahoe?
if this system uses dex-cool flush the system
Why would heater only blow hot air when you turn the temp switch down Replaced temp switch and still does it?
A restricted/plugged heater core can do that. Try flushing the heater core.
How does heat make a hot air balloon go up?
Hot air rises. By heating the cool air in the balloon using a propane heater, heats the air and makes the balloon rise
What is hot and cool air?
hot is hot cool air is cold
91 suzuki sidekick heater blows out cool air. how can I fix it the heater fan is fine but when I put it on hot it only blows cool air.?
This can happen if the water or coolant level in the radiator is low. There are other causes but this is the most common.
Air conditioner is only blowing cool air but refrigerant is full of freon. Heater not blowing hot air either?
Check the temperature control cable
Is the thermostat bad if the heater puts out hot air while in motion and cool air when idling?
May have an answer already, but be sure that the radiator is full of coolant.
What would keep the heater from blowing hot air in a 2002 olds bravada?
The air doors maybe stuck. Or selector switch is not is not operating correctly.
1996 Lincoln town car climate control is blowing only hot air will not cool down when you put it to a lower temp what is going on?
either your temperature contol switch is faulty or the heater thermostat is faulty you can also check the blend air door switch it might not be switching from heat to cold air http://wiki.answers.com/Q/My_1995_town_car_air_conditioner_is_blowing_hot_air_but_is_full_of_freon_and_the_compressor_is_engaging_any_suggestions
Why would the car heater blow but no heat only cool air?
: If you can turn on the heater but only cold air comes out you should check the blend door. It controls the door to switch from cold air to hot. It sits directly behind the heater/AC controls. It is white square plastic piece (approx 3in x 5in half inch thick and has a plastic screw rod that attaches to the heater/AC controls and they strip out. Hope this helps.
What would cause the heater to blow only cool to warm air not hot air in a 2004 Chevy Impala?
It could be that you need coolant or it's low.
