When the skin temperature begins climbing, you in all probability use your air conditioner extra usually. That elevated use additionally will increase the probabilities of one thing going unsuitable. If the a/c in your automotive isn’t blowing out chilly air, issues can get uncomfortable fairly rapidly. Earlier than you go to a automotive air-con restore specialist, take a couple of steps to see in case you can repair the issue your self. Even in case you can not repair it, it is possible for you to to higher clarify the issue to the skilled you ultimately rent.
Step one within the troubleshooting course of is studying the fundamentals of the a/c system. The system cools air by compressing a refrigerant referred to as R-134a. Older techniques use r-12 Freon. The refrigerant carries warmth from contained in the automotive to the condenser. The condenser adjustments the refrigerant from a gasoline to a liquid, which expels the warmth. Primarily, air is blown throughout a really chilly liquid.
Leaks are sometimes straightforward to determine, however they’re very tough to repair. Most car provide shops carry a vivid dye that may be injected into the a/c system, which is able to reveal leaks. The can can have directions to be used.
There may be additionally a valve that can reveal the PSI (kilos per sq. inch) contained in the system. If the leak may be very dangerous, the system can have very low strain or no strain in any respect. Nevertheless, don’t test for strain by inserting something into the valve nozzle. That is referred to as “venting,” and it’s unlawful.
Verify the Compressor
Checking the compressor is straightforward. Merely begin the automotive and activate the a/c. Verify beneath the hood whereas the automotive is on. Compressors come in several shapes and kinds, however typically talking, they’re pumps on one facet of the engine with giant hoses. They often have valves that resemble valve stems on tires. There may be usually a pulley on the entrance of the machine.
You possibly can determine an issue if the air conditioner is working, however the center of the pulley isn’t spinning. Which means the clutch of the compressor is disengaged. The issue could possibly be brought on by malfunction, a defective change contained in the automotive, or a leak. You need to change the fuses controlling the a/c. Additionally, strive each out there a/c setting to find out if an inside change may simply be defective. Verify for leaks to find out if the refrigerant is escaping. If all of this fails, a automotive air-con restore skilled can decide why your compressor’s clutch isn’t participating.