On older vehicles, it can be a source of leaks or other problems. This is due to the rapid expansion of the compressed gas. The gas lines are dripping with condesation so Im sure that there is plenty of gas in the lines. The air conditioner system could lose its cooling component, which will result in it blowing air, just not cold air. An air conditioning system is basically a series of heat exchangers, or radiators, with a compressor somewhere in the middle. The heater core is a smaller radiator, but instead of exchanging the heat with the outside air, it sends the hot air to the blower motor and through the climate vents. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. Again, this is the part of the heat pump that reverses the refrigerant and allows it to act as both a heater and an air conditioner. If your car needs immediate repairs, you should not subject it to a smog check. As you can see, both systems are very different. Solution: You may need a new water pump if it’s not working right. Air conditioners fall into one of three major groups; they are either monoblock, i.e units consisting of one block (window, portable, etc.) Read on to learn six factors that could drastically affect your car’s smog test outcome. The water cooling system for the engine (radiator, water pump, hoses, etc.) On vehicles with air conditioning, is completely separate from the air conditioning system. If you are having problems with your air conditioner and it is blowing hot air there are several things that you need to inspect. Well, read on. The actual problem must be addressed. Air conditioning evaporators, which do most of the cooling of the air, can also fail and corrode. Many people don’t know that there are several factors that can affect the outcome of a smog test. How does it do this? All fluids on Earth -- including air and AC refrigerant -- contain a certain amount of energy in the form of heat. In June, the air-conditioning on my then eight-month-old A3 stopped working. For this reason, many home improvement stores and heating and cooling outlets sell "fin combs," small tools used to straighten bent air conditioner fins. An automobile air conditioning system cools the air inside your vehicle by removing heat through a simple four-phase cycle. Ideally it should be facing squarely into the wind. One of our professional mechanics can inspect and diagnose your problem, and then provide a repair that ensures your engine runs … When your car's air conditioner isn't cooling anymore — or worse, blowing hot air — it can make for an uncomfortable ride on a warm day. The water pump moves water from the radiator (where the water is cooled off) to the engine where the water travels through tubes in the block, picking up heat (cooling the block) and then returns to the radiator. Low refrigerant. The problem with running an air conditioner and a humidifier at the same time is the two appliances fight against each other in a way. The problem is my air con gets warm once we reach 2000RPM. Air-conditioning for automobiles came into wide use from the late twentieth century. You can feel pressure or heat. It doesn’t produce it. This gives you the best humidity control. This, coupled with a thorough cleaning, can improve the efficiency of your unit. After you know that everything is Cool…Twist the Radiator Cap and remove it. The water pump moves the coolant throughout the engine, radiator and heater core. While you can fix some minor issues yourself, you’ll need an experience A/C technician to get your system up and running if you encounter a major problem. Any time the coolant temperature rises to higher than normal levels, the fan will start and continue to run until coolant temperature returns to a normal range. The fan stays on ect but the air coming out of the vents is at 15degree celcius, when the car again goes below 2000 RPM the air goes cold again at about 6 degree celcius. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC. Broken reversing valve: If your heat pump is running, but the air coming out of your vents is hot, it’s likely a problem with your reversing valve. This is especially true for older vehicles or vehicles that haven’t been used in a long time. If this component is broken, it will need to be replaced by a technician. Bent aluminum fins on an air conditioner coil can reduce the air conditioner's ability to absorb and exchange heat. Still, you can avoid much of the confusion using a troubleshooting plan. Depending on what kind of climate you live in, driving a car without air conditioning can be almost impossible. 7 Researchers actually have a name for symptoms of your health niggles being linked to your building – it is called the “sick building syndrome”! If you’ve ever sat stranded in an endless traffic jam baking away on a 100-degree summer day without air conditioning, you’ll agree that a functional AC system is essential. The air conditioning system in your car is comprised of a compressor, condenser, expansion valve and evaporator. This can help you diagnose some of these common condenser fan problems. When you squeeze the fluid's molecules closer together, you increase the fluid's temperature. Because the air conditioner cools the air partly by pulling humidity from it, you are basically wasting energy by continually putting more humidity into the air for the air conditioner to deal with. 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