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Auto A/C Repair

Auto Air Conditioning Repair Newbury Park

You can easily get frustrated when your car’s air conditioner gets broken especially when this happens during summer. One of the most common problems that people encounter with their car’s AC is that it blows out hot air. This can be a nightmare. In this article, we’re going to discuss the reason behind this air conditioning repair problem.

When doing air conditioning repair, it’s very important that you know all the components of your car’s AC system so that you can easily understand the main cause of the problem. A refrigerant is an important part of a car’s AC because it’s the fluid that cools the air inside the car by absorbing heat. The compressor is another important part, which is responsible for pumping the refrigerant. It removes the heat that the refrigerant absorbs.

A car’s AC can blow out hot air because of different reasons. This can happen because the compressor is not getting enough refrigerant. On the other hand, the system can also blow out hot air because of obstructions. This can also happen if the blend air door in the unit gets stuck on the heat position, which prevents the evaporator from receiving air.

AC systems that blow out hot air are commonly encountered in cars that have a dual zone climate control system. This enables you to control the temperature inside the passenger compartment of a car based on each person’s comfort levels. The AC may be blowing hot air because of low levels of refrigerant or HVAC door issues. When this happens, you need to take your car to a mechanic and have it checked.

There may be times when the AC in the car stops working or does not give effective cooling. A repair is required at this stage. Each and every car is made of different design and model. But, the basic functioning of the AC in most of the cars is the same. The basic problems with the car air conditioner and the basic ways to fix the problems of car air conditioner have been listed below:

Absence of cool air and improper cooling are the signs of problems with respect to the car air conditioner.

In order to diagnose the problem with your car air conditioner, it is very important to have proper information and knowledge of the different parts of the car air conditioner. There are five components of the car AC viz the compressor, the condenser, the expansion valve, the refrigerant, and the dryer or evaporator.

It is very important to understand the functioning of all the parts so that the right action can be taken in case of any problem.

The refrigerant is pumped out through the compressor. The compressor acts as a power unit of the car air conditioner.

The condenser performs the function of changing the refrigerant to the liquid form.

The liquid formed through the condenser is converted into cold air with the help of the evaporator or the dryer.

There may be some pressure on the condensed refrigerant. This pressure is removed with the help of the expansion valve and moved into the evaporator.

In case of ineffective cooling, check the refrigerant for any kind of leakage. A fluorescent dye that is readily available at any auto part shop can be used to check the refrigerant. Autozone or NAPA can be used as the fluorescent dye.

The instructions given on the pack of the dye that you purchase should be followed completely and carefully. In most of the cases, the dye is added through the low pressure A/C recharge port that is found on the canister of the air conditioner of the car.

Use the U/V light to check for the leakage. In case of leakage of the refrigerant, the refilled kits can be bought from any auto supply store. These refilled kits are sealed and the replacement can be done by anyone at home.

A check that can easily be made to check the health of the A/C system is the “feel check”. With engine running, turn the auto A/C control to “ON” and the blower on “high”. Take a test drive to warm the engine until the A/C system pressures stabilize. Raise the hood. With the A/C “On”, locate the large tubing connected and routed from the compressor (low side) to the expansion valve (inlet side) of the evaporator. Next, locate the small tubing that is connected to the discharge-side of the compressor and routed to the outlet side of the evaporator. When you feel these two (2) lines, you should observe these results:

  1. The low-side line should feel “cool” to the touch.
    2. The high-side line should feel “warm” to the touch.

In case this is not the problem, check for any kind of problem with the fuses, wires, and fan belts. The fuse may have turned bad. The wires might have broken, and the belts of the fan may have got damaged. All these problems may be creating trouble with the functioning of the pump. In case of any problem with any of these parts, get the parts replaced to ensure proper functioning of the car air conditioner.

Auto air conditioning may be damaged by leakage in systems, low level of refrigerants, clogging in condensers, and failure of compressors. Some of the problems are simple and can be handled on your own. Some others need technicians to perform the task. To facilitate this, a number of auto repair shops are available. Along with basic auto mechanic tools, some specialty tools are also needed, this depends on the type and area where repairing services are needed. Air conditioning repair manuals serve as ideal companions when repairs are needed.

There are certain facts one must know about auto air conditioning repair. A/Cs are designed to keep the vehicles cool. The repairers must be familiar with five important components, such as compressor, refrigerant, condenser, expansion valve, and dryer or evaporator. In some vehicles, accumulator and orifice tubes are used instead of expansion valves and dryers. One must have a detailed knowledge of the whole mechanism involved in air conditioning systems.

The air conditioner should be tested after making any kind of repair done by you.

In case one has tried all the above methods to make the AC function properly, and even after replacing all the parts, the AC does not function properly, then there is a need to call a professional.

In general, there are two main reasons why a car’s AC won’t work properly. First, the refrigerant is unable to absorb heat. Secondly, it’s not getting enough refrigerant because of a refrigerant leak or a clogged condenser. If your AC is not blowing out enough air, this is most probably because of a refrigerant leak. In order to get rid of this problem, you first need to check your condenser. Clean it and remove all the dirt and debris.