You might have a blockage somewhere, or you might need to replace the thermostat.
Radiator is not a part of the AC system; it is part of the vehicle's cooling system, which helps to cool the engine by dissipating heat. The AC system consists of the compressor, condenser, and evaporator, which work together to cool and circulate air inside the vehicle.
Coolant doesn't go through the cooling system, and the vehicle will overheat.
The cooling system
The pump in the cooling system of an automobile that cause the water to circulate.
Generally thru the use of a belt driven centrifugal pump
yes
Back flushing on a cooling system is when you get all of the trapped air out of your cars cooling system. This will make your vehicle run better after you do it.
To circulate blood through the body.
You have the system set to allow outside air to circulate into the vehicle. You can change this to the recirculate mode which will only circulate inside air. Look for the button to change the setting.
Thermostat is stuck or water pump is bad or radiator is clogged. Start with the thermostat because it is the most likely and the cheapest to repair. Good luck
PCV Valve
PCV valve