if it is blowing cool air, and all the buttons are postioned to bow hotair it could be that..
the connection to the coil has been disconnected, which is quite simple to fix, u just need to take it to ur general electricain and we will either screq back the connection on (depending on how it was orginaly connected:, or he will soldier it on. (soldiering iron)
if the heater does not blow out warm air change the setting.
heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
Isn't a heater supposed to blow warm air?
it wont blow heat itll blow cold air
Yes.
It could be the thermostat on the engine. If the engine does not warm up adequately the heater will never blow hot air.
check heater fan to see if it is working.
Heater core may be plugged . Flush the cooling system, also check thermostat.
Check your anti-freeze levels
engine not warm, low coolant, or stuck thermostat
Temp blend door malfunction.
Low on coolant. Stuck open thermostat. Poor circulation (plugged heater core).