When the surface temperature starts climbing, you probably use your air conditioning equipment more often. That increased use also advances the chances of something going wrong. If the a/c in your car or truck is not blowing out cold air, things could possibly get uncomfortable pretty quickly. Before you visit a vehicle ac repair specialist, have a few steps to see if you can fix the problem yourself. Even though you cannot fix it, you will have a way to raised explain the situation to the professional you eventually hire. The first faltering step in the troubleshooting process is learning the basics of the a/c system. The device cools air by compressing a refrigerant called R-134a. Older systems use r-12 Freon. The refrigerant carries heat from the car to the condenser. The condenser changes the refrigerant from a gas to a liquid, which expels the heat. Essentially, air is blown across a very cold liquid. Check for Leaks Leaks are often easy to identify, but they're very hard to fix. Most automobile supply stores carry a brilliant dye that may be injected in to the a/c system, which will reveal leaks. The can may have instructions for use. There's also a valve that will reveal the PSI (pounds per square inch) within the system. If the leak is extremely bad Car Ac Diagnosis Reading, the system may have suprisingly low pressure or no pressure at all. However, don't check for pressure by inserting anything in to the valve nozzle. That is called "venting," and it's illegal. Check the Compressor Checking the compressor is simple. Simply start the vehicle and start the a/c. Check beneath the hood while the vehicle is on. Compressors can be found in different shapes and styles, but generally, they're pumps on a single side of the engine with large hoses. They generally have valves that resemble valve stems on tires. There's typically a pulley on the leading of the device. You can identify a challenge if the air conditioning equipment is running, but the center of the pulley is not spinning. This means that the clutch of the compressor is disengaged. The problem could possibly be brought on by a power malfunction, a faulty switch inside the vehicle, or even a leak. You should replace the fuses controlling the a/c. Also, try every available a/c setting to determine if an interior switch might just be faulty. Check for leaks to determine if the refrigerant is escaping. If all this fails, a vehicle ac repair professional can determine why your compressor's clutch is not engaging. Refill the Refrigerant If the compressor seems fine and you will find no leaks, you might not require car ac repair at all. Turn the a/c on within the car. If the air developing continues to be slightly cool, you might only have low refrigerant levels. You can buy a can of R-134a at any automotive supply store. You need to be sure to not overfill your system. There's no take advantage of adding more compared to the recommended quantity of refrigerant, and it increases the risk of damaging the system. These three common steps address the most frequent difficulties with automobile air conditioners. In the event that you troubleshoot your a/c and it still won't work, then you definitely probably desire a mechanic. At least you'll have the ability to speak confidently with the mechanic once you take your car or truck to the shop.
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