No heat in your car may be from your water pump going out and not feeding your heater core with enough water to produce heat. First remove your thermostat and see if your car stops over heating. If it doesnt, then you need to replace your water pump. Hopefully you havent cracked your heads. If your car doesnt over heat after removing the thermostat, but you still have no heat in the car. Then its your heater core that needs replacing. Always replace your thermostat whenever replacing the water pump.
bad water pump or low coolant level
most likely it will be hot so put snow on it
It is heated to such a high temperature by going over the engine which is really hot and is part of the cooling system, the cold air goes over some part of the engine and comes out hot. It is part of the cooling system of a car, so therefor if your car has overheating problems turn the heater on.
a leak is probably getting on something hot and cooking away
when the air dont come on when its hot its because theres no air getting into the car and the car starts to get hot
your car ac will only blow hot air when there coolannt in the car is finished or the car is oveerheated.
It's not always the case if your car is overheating. This could be a sign the head gasket is bad but many other things could cause overheating as well. If your car got hot or runs hot it won't always require a new head gasket
To prevent your computer from overheating, ensure proper ventilation by using a fan to blow cool air into the system and expel hot air. Regularly clean dust from the fan and vents to maintain airflow and prevent overheating.
faulty control valve on heater or air in the lines
well generally the best thing to do is to stop using them for a while and just let the air cool them. Its a bad idea to put water on them when they are hot, because it may cause the brakes to become brittle. If they are constantly overheating, though, you definitely want to get them changed.
it is drawing the hot air off the engine.
I dont understand, is your car overheating or do you think your switch is overheating? Switches do not overheat, if they become hot to the touch there is a grounding problem which would have most likely blown a fuse at some point.