This is because it is not able to regulate the refrigerant needed to cool down the air. You may notice the car being most affected when stopped, as the engine is not working as hard, and there is no airflow from driving down the highway.12 jun 2020
Why does my AC stop working when I stop driving?
So what caused your air conditioner to stop working? Most likely, your AC system lost its charge of refrigerant. Or, due to an electrical fault, its compressor is not engaging when you turn on the system. Another possibility is that an internal obstruction is blocking the circulation of refrigerant.
Why does my AC stop blowing cold when idle?
Overheated engine. Another common reason for car air conditioner not blowing cold air when idling is an overheated engine. ... When the car is already overheated and the fans in the radiator and condenser are not working properly for some reason, the system can't cool down the heat with the maximum efficiency.5 dic 2021
Why does my AC stop cooling When I stop?
If your air conditioner will turn on, and your thermostat is set properly, but your system is not cooling you may have a dirty or blocked air condenser. ... If your air conditioner is still not cooling air, you may have a problem with your compressor or refrigerant and will need to contact a professional.24 jun 2015
Why does my AC get warm at idle?
Your AC system is low on refrigerant. Since the AC compressor is driven by the engine, it doesn't pump as much refrigerant when you're at a stop or driving slowly. If the system is low on refrigerant, it will show up as AC blows warm at idle and blows colder when the engine is running at higher RPMs.30 jun 2020
Why does my car AC go out after a few minutes?
Intermittent cooling is often caused by the components of your vehicle's AC system freezing up. Typically an iced over evaporator is the culprit. ... There may be numerous issues causing the icing—from a dirty cabin air filter to a blocked evaporator drain or an overcharged system.25 jul 2015
Why my AC stops cooling after some time?
If there's something wrong with your air conditioner that makes it shut off after just 15 minutes, it's usually one of these issues: Unit is overheating: This often means there is simply a buildup of grime inside the compressor unit, but it could also mean there's a refrigerant leak or another problem.