The thermostat in your car controls the temperature of the fluid entering the heater core. Thermostats have different temperature setting i.e. 195,180 etc. When the rated temperature is approached, the thermostat starts to open up, the fluid path is changed and the temperature of the fluid is held at the rated temperature. If the thermostat opens too soon, or fails to close the heater core will not reach max temperature, and the air from the heater air will be warm,not hot. Also the mechanism that opens the duct door may not work,and the same problem will occur. Also, your core may have a fluid control lever which may not work.
why does ac blow warm air? why does ac blow warm air?
It could be the thermostat on the engine. If the engine does not warm up adequately the heater will never blow hot air.
It appears that it is low on freon. Did you evacuate the system??? Take it to an a/c mechanic. could be the "head unit" or A/c contols in the dash.
if the heater does not blow out warm air change the setting.
low freon or none
It could be that you need coolant or it's low.
heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
It is probably too old or you could have it on the warm setting. I'm going to have to say, get a new air conditioning. MaDiSoN!!!
I think it will last longer in a warm air because we blow balloons and we have warm air so I think is the warm air.
your heater core hoses could be plugged up and not letting much hot anti-freeze into the heater core then when you try to blow alot of air through it it cools the warm air off too much and you get not so warm air. try a cooling sytem flush
engine not warm, low coolant, or stuck thermostat
Isn't a heater supposed to blow warm air?
Your air conditioning unit might need recharged with freon. If there is not enough freon in the system the system will not cool the air in the heat of the day but when the outside temperature drops in the evening it might be easier to cool.
The system can be low on refrigerant
A bad alternator will cause a battery to go bad. It does not have an effect on the air conditioner.
it is a heater. heat. it blows heat. warm air
I don't think it blows warm air... but if your talking about the part thats stays outside it blows warm air thats in your home and the part inside "replaces" the warm air with cool air..
Heatstrips could be on with ac
Any heater that only blows luke warm air isn't getting warm or hot water to the coil. This sounds like a problem with the thermostat not closing, and allowing the engine to heat the water properly for the heater.
jaguars blow, the ac is making the cool air. turn it off, to stop cool the cool air.
My 2002 blows warm air when the rpm goes down significantly (when I don't clutch)
The rear air conditioner of a Sienna will begin to blow warm air if the vent is incorrectly set. This will cause warm air to enter the vents rather than air conditioned air.
Well, the AC seems to be not able to generate enough heat. So you may want to get that checked but that seems like it would be a waste of money because at least it blows warm air rather than cold.
Probably low on freon. Have the system tested for leaks, repair if necessary and recharge system.