If it isn t it could be that the heater control valve is not working and needs to be replaced or on older cars a physical flap which alters the path of the air could be broken or disconnected from the controls.
Car heater control panel not working.
If the holdup is by the heater core then that s one reason why hot air isn t blowing.
You ll want to flush it several times with water to get.
Here is the fuse box layout formation in car.
Report back when done.
When it does happen you re left with a miserably underpowered heat or ac system.
They are not that hard to remove though.
That means a trickle out of your vents instead of the rush you asked for.
The replacement is easy and involves a straightforward remove and install process.
Sometimes after using the control buttons for several years they can get gummed up and stop working.
Ac compressor not coming on.
Blower on high could be an issue with the control head or blower speed controller.
If you notice that your car a c or heater is not working and you trace the problem to the a c and heater control unit do not hesitate to replace the said part.
And under the hood.
Thermostat if the thermostat is jammed open causing the car to overcool there may not be sufficient temperature in the coolant to provide sufficient hot air.
Certain settings not working or working intermittently as the ac control switch is an electrical switch it contains.
If that piece is not working right your car could get stuck blowing cool air into the cabin.
Very likely climate control unit one with the buttons is not working.
Me being me i d have it pulled out and sprayed buttons with electronic cleaner and then blown with compressed air.
Maybe even pull the front panel off and do some deep cleaning.
One of the most common problems with an automotive climate control system is a lack of blower pressure or no blower at all.
Fixing this can be as simple as a fluid flush.
Cool air blowing could be due to an engine temperature issue not generating enough heat to create for the system or could be due to a temperature control or temperature blend door issue.
The heater control valve is underneath your hood and acts as the switch that turns the heat on and off.
Check for fuse in car and under the hood one power is restored if it does not work we can read the fault codes on the display panel.
Otherwise they are cheap from junkyards.
79 99 89 99 1.
If you have automatic digital temperature control then it s a bit different.