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Your average air conditioner compressor is likely only to work for 60,000 to 70,000 miles. That's to be expected, that's just how machines operate. Every time you turn on your AC, you're putting the compressor under a little bit more wear and tear. Cooling a car down can definitely be an important safety factor in the middle of a heat wave or on one of those oppressively hot summer days.īecause the compressor is the most important part of your entire air conditioning system, it tends to be under the most stress. And children in particular are at high risk of heat stroke in a sealed car in high temperatures. The temperature in a car can rise over 20 degrees in just 10 minutes. When the heat comes around, you really will miss your air conditioning if you don't have it. If it's not functioning during the winter, then obviously you're not going to care that much what it's incredibly cold.
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There's also the fact that if you live far enough north, your air conditioner is only a concern for part of the year. The fact that it could also be quite a pricey repair job means it does get put on the back burner by a lot of people. The fact is you don't technically need air conditioning for your car to run, so for a lot of people this is a secondary concern, or not even a concern at all. Some people will let a bad or failing AC compressor go for quite a long time without getting it replaced. When you press the button, you'll start getting nothing, but warm air blown into the cabin. If your compressor isn't functioning, then your air conditioner will not work at all. It is the AC compressor that starts this whole process off and powers the entire unit to keep the cycle going. When it gets pumped through under all that pressure into the condenser it strips the heat away and that's where the cooling begins to come into play.Īfter the condenser, the coolant needs to be depressurized in the expansion valve and then run through the evaporator where it becomes extremely cold and the air is blown into the car from that point.
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Interestingly enough, the coolant that flows through the compressor is actually quite warm. The compressor of your air conditioner is likely powered by a serpentine belt that's connected to your engine. It puts it under high pressure and then forces it towards the air conditioner’s condenser, which is where it changes state from a gas into a liquid. The compressor, as the name suggests, puts pressure on the coolant in the system. In your car's air conditioning unit, the compressor is kind of like the engine that makes it all work.