Air Conditioning Maintenance, Service & Repair

 


Keep Your Cool in Hot Summer Cars

When it’s hot outside, one of the last places you want to be is sitting in your car without a properly functioning air conditioning (A/C) system. To help avoid this uncomfortable situation, the Car Care Council recommends having your A/C system checked annually to make sure it is functioning at its peak performance level when the temperatures are soaring.


“Making sure your A/C system is working properly will give you the peace of mind knowing that your vehicle will keep you cool and safe when you hit the road this summer,” said Rich White, executive director, Car Care Council. “Not only are high temperatures harmful to the body with prolonged exposure, but they can provide unnecessary wear and tear on a vehicle.”


A vehicle’s heating, ventilating and air conditioning sys-tem (HVAC) keeps the interior cabin comfortable in any season by providing the right temperature and humidity level. Typical A/C service consists of the following steps:

● Service technician visually inspects hoses, lines, seals and other components for leaks as well as inspect the drive belt for cracks or damage.
● Technician checks pressures to test operation, refrigerant charge and outlet temperatures.
● If the system is found to be low on refrigerant, a leak test is performed to find the source of the leak. Keep in mind that if your vehicle is leaking refrigerant, it is damaging the ozone layer.
● Refrigerant may be added if necessary to “top off” the system.
● A technician may also check for evidence of refrigerant cross-contamination, which is the mixing of refrigerant.
● A/C service also includes a check of the compressor’s drive belt and tension.

 

 

car air conditioning service

Accurate Auto Care & Alignment
2950 Sweetwater Ave.
Lake Havasu City, AZ 86406
Ph. (928) 680-4046
email:
accurateautocare@yahoo.com

 

car air conditioning -service

 

Air Conditioning System


The sole purpose of the AC system is to keep the vehicle passengers cool. While it depends on the engine cooling system to help eliminate or pull heat from in-side the passenger compartment, it is a completely separate system from the engine cooling system.car-blowing-hot-air


Instead of coolant or antifreeze, the AC system uses and circulates refrigerant (sometimes called Freon) through the system.


The AC compressor pumps refrigerant through hoses and lines. The refrigerant enters a unit under the dashboard called an evaporator. The blower fan under the dash circulates hot air from inside the passenger compartment, through the evaporator. The refrigerant in the evaporator absorbs this heat and that heated refrigerant is pumped (by the compressor) to a unit called the condenser located at the front of the car in front of the engine cooling system radiator.


Just like the engine cooling system radiator, the AC condenser transfers this heat to the air.


Then the “cooled” refrigerant is circulated back to-ward the passenger compartment where it passes through a filter/drier (sometimes called an accumulator) and a metering valve (called an orifice tube or expansion valve) and returns to the evaporator where the whole cycle starts all over again.


If the engine cooling system is not working properly it can seriously impede the operation of the AC system (even to the point of destroying the AC system).

 

 

Air Conditioning Maintenance

Most car owners don’t service their air conditioning until after it fails. Maintaining your car or truck air conditioning system means that you always have enough refrigerant to properly do the job. Small leaks in the air conditioning system allow the refrigerant to escape and the system can’t cool the air as well.

Along with the refrigerant, a special oil circulates in the system. The oil lubricates air conditioning components, and keeps the seals resilient. Low refrigerant and lubricating oil means that the air conditioning parts will wear out prematurely, and we all know that air conditioning repairs can be costly in and around the area.

Air conditioning service at our shop starts with a visual inspection of the components for signs of damage or leaks. The compressor is driven by a belt from the engine, most often the serpentine belt, so it’s inspected for cracks or wear.

The air conditioning compressor and other components are checked for proper operation by our Service Center Technician. Then comes the leak test. If a leak is detected, often in a hose or connection, it’s repaired and the system is retested. Our Service Center Technician will also perform a temperature drop test.

 

air conditioning serviceAir Conditioning Service/Repair

Today’s vehicle a/c systems can lose 5% of their refrigerant per year causing the system to become inefficient. Another thing to remember is the a/c system is used all year long, every time the defroster is used the a/c system is activated to assist in removing the moisture from inside the vehicle which can defog windows much faster than non a/c equipped vehicles. It is recommended that modern a/c systems be tested annually to assure peak performance. Schedule an appointment with one of our factory trained professionals and let us make sure you’re a/c system is running efficiently. We have the latest equipment available to diagnose the computerized components, as well as to service all the different systems including the newer systems on hybrid and electric vehicles. Below is a brief explanation of the major components that make these a/c systems work so well:

 

Compressor:

The compressor is a belt-driven device that compresses refrigerant gas and transfers it into the condenser. The compressor is the core of your vehicle's air conditioning system.

 

Condenser:

The condenser's primary function is to cool the refrigerator. The condenser dissipates heat released by compressed gases and condenses them into high pressure liquids.

 

Receiver (Drier):

The receiver is a metal container that serves as a storage receptacle for the refrigerant; also known as a drier because it absorbs moisture from the refrigerant and filters out harmful debris and acids. You should change your drier every 3-4 years to ensure quality filtration and prevent any chemical damage.

 

Orifice Tube/Expansion Valve:

The orifice tube (also known as the expansion valve) is a controlling mechanism that regulates refrigerant flow throughout the system. It also converts high pressure liquid refrigerant (from the condenser) into low pressure liquid, so that it can enter the evaporator.

 

Evaporator:

The evaporator removes heat from the inside of your vehicle. The evaporator allows the refrigerant to absorb heat, causing it to boil and change into a vapor. When this occurs, the vapor leaves the evaporator through the compressor, cooling your car and reducing humidity. The evaporator houses the most refrigerant in the heat transfer process and harmful acids can corrode it. This corrosion typically damages the evaporator beyond repair.

 


 

 

 

 

 

 certified auto repair mechanics

Accurate Auto Care

2950 Sweetwater Ave.

Lake Havasu City, AZ 86406

Ph. 928.680.4046


 

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