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.
heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
Your heater will blow cold air only.
if the heater does not blow out warm air change the setting.
you may not have the heater water hoses plugged in
replace front heater corefront and rear have independent heater cores
Probably need to add antifreeze. Check the Radiator not the overflow tank. If you are low on antifreeze it will not circulate through the heater core.
You are low on coolant to the heater core.
It could be the thermostat on the engine. If the engine does not warm up adequately the heater will never blow hot air.
Could be the Climate Control Unit or Clogged heater core.
Low coolant in the system. Defective heater control valve. Clogged heater core.
The front expansion valve is clogged.
check your coolant level
Thermostat and/or heater core may be defective
When you have the heater on, does it just blow any air at all? or no air?
Isn't a heater supposed to blow warm air?
Poor circulation from a faulty thermostat or a plugged heater core. Be sure the coolant reservoir is not empty.
Vent bypasses heater core when open,it is for outside air only...I know this because I just replaced heater core.
It depends on the type of heater you have. It may be maintaining the room temprature or it may be warming up ( just like how air conditioners start hot )
check heater core could be cloggedCheck the engine coolant level also.*no, the heater relies on the engine for heat and when you drive the engine warms generating heat:)*
It doesn't really blow it out it just warms the cold air.
The thermostat could be stuck open.
it wont blow heat itll blow cold air
A restricted/plugged heater core can do that. Try flushing the heater core.
Possible causes are, low on coolant, thermostat stuck open, clogged heater core or vacuum scorce not getting to the heater control.