Low coolant? Thermostat not opening? Heater core restricted or plugged? Heater core airbound? Water pump not circulating coolant? Temperature control not working?
I own a 1997 Ford Contour and there was a recall a few years ago on the heater blower and resistor. Check out the recalls on the car.
It could be the thermostat on the engine. If the engine does not warm up adequately the heater will never blow hot air.
heater will not blow on a 1996 ford contour
if the heater does not blow out warm air change the setting.
The heater does not blow air because it emits infrared rays that have heat molecules within them, thus releasing heat, not blowing it. A heater does not blow air becasue there is no moving air source within the heater. The heater emits infrered rays that cause heat to slowly flow out of the heater.
Your heater will blow cold air only.
In most cases when a vehicle heater that has been working properly in the past begins to blow cold air the cooling system is low on coolant. It could also mean that your heater core is clogged. A good coolant system flush might take care of this, otherwise you may have to have it replaced.
Replace the thermostat first. If it is stuck open, engine may not get a chance to warm up.
Bad selector? vacuum leak at engine or vacuum motors under dash
why doesnt my heater work on my1985 BMW
Check the thermostat or heater core
The front expansion valve is clogged.