Air conditioning compressor

An air conditioning unit is made up of five major components. The components include the compressor, the condenser, the evaporator, the dryer and the expansion valve. All these parts are interconnected by the refrigerant which is the liquid that carries the heat between the components and has the ability to change from liquid to gas when it is carrying heat and can be compressed from gas to liquid to continue the process.

So what is the role of the compressor? Basically the compressor compresses the refrigerant using pressure and it then goes to the condensing coils. If the air conditioning unit is in your car the coils are located near the radiator. Putting the gas under pressure increases its temperature and this heat is expelled to the air flowing across it from outside the car.

When the refrigerant has been cooled sufficiently its state will change from gas to liquid. Scientifically this means that the gas has released the latent heat of vaporization required for it to change its state.

The compressor is the central part of the air conditioner. It is quite expensive to replace and you should always schedule regular maintenance for your air conditioner to prevent replacing it. The maintenance checks could expose a leak that can only be detected by experts who use special dyes. Leaks are especially dangerous to the compressor because when they continue leaking the refrigerant could come into contact with moisture and become corrosive and start to eat away at the compressor. Consequently, the compressor would have to be replaced.

Normally, after the refrigerant passes through the condenser after leaving the compressor it passes through the expansion valve to the evaporator here it loses the pressure from the compressor. Here the refrigerant is in two states liquid and gas, in the liquid state the refrigerant absorbs heat from the coil and evaporates. The blower circulates cool air into your car.

If you suspect that your compressor has a problem then you will notice any one of the following

  • Lowered performance of your AC
  • Noises from the compressor when you turn the AC on
  • You turn on the AC and it starts off cool and then becomes warm
  • Your AC does not cool the way it used to
  • You turn on the AC and it is not working completely
  • Your compressor may be damaged and there are only two solutions for this. The certified technician will either fix it or you will be forced to replace the compressor. Sometimes the compressor could be lacking enough refrigerant to operate and in this case the technician will recharge the system with the right amount of refrigerant.

    When the damage extends to other components and the system is irreparable then he will recommend you purchase a new AC. To avoid your AC getting to this extent you can arrange for regular maintenance of your AC system because the compressor is the central part of the AC and should be kept n the best condition.