The air conditioning unit in your vehicle operates similarly to a refrigerator. Your vehicle’s air conditioning unit is designed to move heat from the inside of your car to outside of it.
Your vehicle’s air conditioning unit has six major components:
- The refrigerant carries heat. In modern cars, refrigerant is a substance called R-134a. Older cars’ refrigerant is called r-12 freon, which is more expensive and difficult to find than R-134a.
- The compressor circulates and compresses refrigerant within the vehicle’s cooling system.
Your vehicle’s condenser changes the refrigerant from gas to liquid and expels heat from the car.
- The expansion valve (sometimes called the orifice tube) is a nozzle that simultaneously drops the pressure of the refrigerant liquid, meters its flow and atomizes it.
- Your vehicle’s evaporator transfers heat to the refrigerant from the air blown across it, cooling your car.
- The receiver or dryer filters your vehicle’s refrigerant and oil, removing moisture and other contaminants from them.
When you start your vehicle’s air conditioning system, the compressor works by putting the refrigerant under pressure, sending it to the condensing coils, which are generally in front of your vehicle’s radiator. The condenser expels hot air to outside the car, cooling the air within the vehicle. When this happens, the refrigerant is cooled, and it changes from a gas to a liquid, which then passes through the expansion valve and to the evaporator.
Once the evaporator receives the liquid-state refrigerant, it loses pressure and cools the remaining liquid. The vehicle’s blower moves air across the evaporator and into the vehicle’s interior. If you keep your air conditioning unit turned on, the refrigerant goes through this cycle continuously.
If any of these components is damaged, it can turn your cool car into a furnace during the summer months. Your vehicle’s air conditioning issue could be as simple as topping off refrigerant to replacing a valve. When your air conditioning unit is not working as it should, bring your vehicle to A-1 Auto Repair. One of our trained air conditioning specialists will inspect your car’s air conditioner, all lines, the evaporator and the compressor for leaks and wear.
Right And Wrong Inspection Methods — And A State-Of-The-Art Machine That Will Increase Your Air Conditioner Life
This is So Cool!
(not meant as a Pun…)
An air conditioner is designed to remove the heat and humidity from inside a vehicle. It is usually powered by a belt. A compressor compresses the refrigerant to pressurize it and pump it through the system. The refrigerant is then pushed through a valve where pressure and temperature are reduced. The now-cool refrigerant travels through an evaporator and the result is cooled air blown into your vehicle. The refrigerant returns to the compressor and the cycle begins once again.
Your A-1 Auto Repair Professional visually inspects hoses, lines, seals and other components for leaks, checks temperature readings, checks that your compressor is operating properly and inspects the belt for cracks or damage. You may need a simple recharge of the refrigerant – or the inspection could point out other services that ar needed. The air conditioner belt may also drive other components, so a broken belt can have a much worse impact than simply an uncomfortable trip. It takes an expert to tell, so let your A-1 Auto Repair Professional give you peace of mind by knowing that your vehicle will be cooler and safer.
Depending on the results of the inspection, your system is then serviced only as required to ensure proper operation, which might include evacuating refrigerant from the system, re-charging the system using the correct refrigerant according to the vehicle manufacture specifications using our State-Of-The-Art Snap On KOOL KARETM Plus AirConditioner Service Center. We also can perform any necessary service on the compressor, evaporator, condenser and electrical controls and finally, we’ll cross-checking everything to make sure it operates properly.