When the automobile is moving, there is greater airflow over the condenser (the heat exchanger in front of the radiator), and this airflow is critical to system operation. Another possibility is that the compressor clutch is not cycling properly, or that the condenser is clogged or unclean.
Condenser fans will activate automatically to maintain airflow when the vehicle is in stop-and-go traffic or is entirely halted. This keeps the condenser from overheating and malfunctioning.
However, when the vehicle is not moving, there is less air flowing over the condenser, which causes it to heat up. The automatic fan will then turn on to keep the temperature down, but it won't be able to move as much air, so you'll still be heating up inside the car.
The best way to avoid this problem is to keep your car's cooling system clean. Use a quality car wash product to remove any dust or debris that may be blocking the fins of the condenser. This will help ensure efficient heat transfer from outside to inside the vehicle.
If you notice that your a/c is getting hot even when the vehicle is at a complete stop, call our team today at (888) 909-9886 for an immediate appointment with a certified mechanic. We're located just north of Atlanta, GA, and service all areas within a 100-mile radius.
Why does the air conditioner stop functioning while idling but start working again when I drive? The most typical cause of this is a condenser. Your automobile will not blow cool air if it is not working correctly. When your automobile is stationary, the condenser, which is entirely dependent on the cooling fan, cools it down. As soon as you turn the ignition key, the fan starts spinning, blowing over the condenser to begin cooling it down too.
The next thing you need to know about AC systems is that they can become clogged with dust from the outside environment. This prevents proper ventilation and causes your system to fail prematurely. Regular inspection of your AC system by a certified technician is very important for its longevity. A clogged filter should be replaced before it causes serious damage to your engine!
If you're having trouble keeping your vehicle's interior warm, check the thermostat. It may be malfunctioning and not letting the heat come on. If you have an older model without electric fans, make sure the radiator isn't blocked by debris. Blockages prevent water from flowing through the system and can lead to overheating and engine failure.
Try not to leave your car parked in the sun or under a hot hood for too long. This will drain power from the battery and could cause it to fail. Always keep your driver's door open while your engine is running so air can flow into the car to help dissipate heat.
Your air conditioner is running short on refrigerant. Because the AC compressor is powered by the engine, it does not pump as much refrigerant when you come to a complete stop or travel slowly. If the system is short on refrigerant, the air conditioner will blow warm at idle and chilly when the engine is operating at higher RPMs. The solution is to add more refrigerant now while you have the cap off.
Refrigerant must be added in amounts equal to 10% of the original charge per the manufacturer's instructions. Be sure to follow all instructions very carefully for proper installation. If you install the refrigerant charge too quickly or without properly charging the system, you may cause damage to your vehicle's air conditioning system.
If you operate your vehicle in the warmer months, make sure that you do not leave any doors open when parked in the sun. This will cause heat to escape through these openings and cause the interior of your car to become hot.
If you own a business and use your vehicle for company business, know that being aware of these types of issues will help you to avoid problems with your vehicle's cooling system. A mobile office that is run on outdated energy sources is an expensive luxury that cannot be afforded by many small businesses. By taking the time to check out these types of problems, you will be able to ensure that your business' financial situation is not jeopardized due to poor energy management practices.