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Tag: Auto Air Conditioning

Warning Signs That Your Air Conditioner Needs Extensive Repair

In extreme temperatures, we are all thankful for our vehicles’ air conditioning. As spring approaches, the weather is expected to get warmer, and the need for air conditioning in your car will be necessary. It is an excellent time to ensure that the air conditioning works correctly to avoid any problems later. Following are some warning signs that your air conditioner needs extensive repair.

  1. There is no air coming from the air conditioning vent.

If your air conditioning vent is throwing no air despite being on full blast. This is a problem you should be looking into. Multiple reasons lead to this problem, like blown up fuse, failed blower resistor, or blocked air intake. Get it fixed as soon as possible to avoid any air conditioning failures down the line.

Related: “Your Car AC Isn’t Cooling Enough? Here’s What You Need to Know!”

  • Air conditioning unit is making strange noises.

This is one of the problems that drivers face everywhere. Strange unexplained noises from your air conditioning vent are a warning sign to get it checked and repaired before a complete unit failure. The issue could indicate an obstruction such as leaves or other debris in the system, worn bearing, failed compressor clutch, blower motor, and principal component failure.

  • Air conditioning unit is emitting foul smells.

A weird odor comes through the vents of your car shortly after you switch on your air conditioning. It shows that it needs some repair. The smell is likely due to a dirty cabin filter or mold growth. Inspect your cabin filter and get it cleaned thoroughly to avoid emitting foul odors.

Related: “Ways to Maintain Your Car’s Air Conditioning System This Summer”


It is essential to keep your car in the best shape to avoid costly repairs. Car maintenance can be a daunting task, and sometimes we may skip it for multiple reasons. For all of your auto maintenance needs, contact H.W. Automotive Inc. Our highly trained mechanics will ensure that your car is in good condition. Call us at (405) 702-4098 to schedule a service or visit our website to learn more about our services.    

Ways to Maintain Your Car’s Air Conditioning System This Summer

For a car to remain in good condition, it requires regular maintenance. Whether it’s a car engine, battery, or brakes, every part should be running optimally and the same goes for the AC. With the extremely hot summer months around the corner, the importance of a car’s AC system increases. Because with a faculty system, sitting in a car for a long road trip in the scorching heat is like a horrible nightmare. So, if your car’s AC is not in a good functioning state, then you need to indulge in a regular cleaning and maintenance just to keep the air supply working properly.

If you don’t know how to maintain your AC system, then in this blog we have listed some of the tried and tested tips that will help keep it in the proper working state.

Check the AC System on a Weekly Basis

No matter whether the weather is hot or humid outside, try to keep the AC running for at least 10 or 15 minutes every week. To keep the compressor working properly and to maintain the gas press, make sure that the AC is set to the coldest setting for the first few minutes. In addition, to prevent any unpleasant odors, you can also run the AC in defrost mode. This will help you get rid of extra moisture that may have settled in the AC system.

Go for Professional Air Conditioning Services

Most car owners believe that maintaining a car’s AC is not very important until it stops working. As we are all aware, whether it’s an engine or AC repair and servicing, it’s not an easy task. It requires professional skills, techniques, products, and tools. Therefore, it becomes necessary to hire a professional technician to help you get your car’s AC repaired, cleaned, and serviced properly. So, if you find that your AC is not cooling and working properly, then it’s time you seek professional help.

Related: Your Car AC Isn’t Cooling Enough? Here’s What You Need to Know!

Periodically Recharge the System

Keeping your car’s AC running in a dreadfully hot climate can be difficult. As a result of the harsh climate conditions, it may lose its optimal performance. So, to save yourself from suffering from such a stressful situation, you need to make sure that your car’s AC system is recharged periodically. This will save you time, energy, and money at the same time.


Instead of panicking at the last moment and wondering why your car’s AC isn’t working, it’s better to take precautions beforehand. We hope that the information provided above will help you keep your AC system functioning properly. If you want to diagnose or repair your AC system and you don’t know where to start, come to H.W. Automotive Inc – the most trusted and reliable name in Oklahoma City. Learn more about our services and our seasoned team by visiting our website or by giving us a call at (405) 702-4098.

Your Car AC Isn’t Cooling Enough? Here’s What You Need to Know!

Spring is here. That means summer is just around the corner! The summer means no more school and the beginning of family trips, events, and gatherings. But it will also bring the hottest three months in Oklahoma. Therefore, it’s so important to be well-prepared to beat the heat and stay cool all summer long.

It’s vital to make sure the air conditioning unit in your car is working at its peak conditions. But what if your car AC is not working at its best? Believe us, it’s the worst thing to experience ever – especially if you’re planning for a long road trip. That’s why if you have any issues, you have to know the reasons why your car’s AC isn’t cooling enough. 

Dirt and Rust Might Be the Reason

You’ll find out that the reason behind the failure of your AC is the accumulation of dirt and rust. As soon as the air conditioner is turned on, the vents may emit an unpleasant smell due to mold in the air conditioning system. This mold and rust may form as a result of moisture that occurs when air is pumped from the evaporator to the car. All of this can be cleaned by a professional technician who specializes in auto AC systems and knows how to deal with them.

Related: Signs You Need Your Car’s Air Conditioner Repaired

There Might Be an AC Leak

Air leakage might be the key reason why your AC is not working properly. In fact, with the frequent use of the air conditioner in the car, the level of the refrigerant gas as well as the cooling in the AC at a certain point will decrease. Moreover, it may decrease due to a hole in the pipes through which the refrigerant passes. Therefore, you have to take your car to a specialized technician to fix it as soon as possible.

Look for a Faulty Fan

Well, we all know what role the fan plays in the AC systems of your car. But a broken fan can heavily damage the air conditioner system or blow the air out of the air conditioner, as it removes heat from the AC system by blowing air through the condenser. By removing heat from the system, the AC system pressure is kept low allowing the air conditioner to provide the coldest air possible.

Final Thoughts

As they say, prevention is better than cure. This way, it’s very important to take your car to be diagnosed by a professional technician and be well-prepared for the hottest season of the year. If you want to diagnose or repair your AC system and you don’t know where to start, come to H.W. Automotive Inc – the most trusted and reliable name in Oklahoma City. Learn more about services and our seasoned team by visiting our website, or give us a call at (405) 702-4098.

The History of Auto AC

While driving on a sweltering day, a good air conditioning system is a delightful boon. Clement indoor air protects us from fainting or falling prey to a heat stroke, and thereby helps protect the other drivers on the road too. To examine some of the most notable developments in the history of this lovely invention, simply keep scrolling!

No more manual fanning

The 1933 issue of the American magazine Popular Science Monthly tells the story of the birth of the first auto AC system. The lowering of temperature that is accomplished by a refrigerating compressor (placed beneath the car’s floor boards) was astounding at the time. The strength of the breeze was controllable from both the instrument board and the rear seat. The radiator elevated the air temperature by putting hot water through its coils, and the filtering of air occurred through a special duct. Either a battery or a car generator was the source of the compressor’s power. Showcased in the streets of New York City, the air-conditioned design was primarily available for high-priced cars at the time.

President Coolidge looking at a 1924 car.

President Coolidge, with a loudspeaker-installed car (1924).

It lacked air conditioning.

Democratizations and reforms

By 1940, the automobile manufacturer Packard released the first cars with factory-installed air-conditioning. In the 1950s, Nash Ambassador pioneered the integration of heating into the air conditioning system. By the 1970s, more than half of the cars on the new car market came with an AC system. Beginning in the 1930s, R12 (dichlorodifluoromethane) became automakers’ go-to refrigerant, as it was neither flammable nor poisonous. In 1994, however, concerns about ozone layer depletion led lawmakers to ban R12, which led to the use of the less effective but less damaging Freon: R-134a.

A logo on a 1957 Rambler.

A 1957 Rambler that bears a logo that advertises air conditioning.

Mad Max AC

Today, AC systems are present in 99% of all new cars and utilize R-134a, although cars that were built prior to 1994 are still eligible for retrofitting. Automatic climate control systems have appeared, allowing drivers to manipulate settings to the point that air distribution and fan speed can be controlled. Options like “Max AC” are also available to cool the car faster in the event that the car is parked in the sun for a long time.

A contemporary auto air conditioning system.


Although we often take auto air conditioning systems for granted today, a deep dive into some of their history can immediately humble us into being thankful for all the sleek technologies at our disposal. If your car’s cooling system is encountering issues, feel free to bring it to H.W. Automotive Inc.!

3 Major Chemical Reactions at Work In a Car’s A/C System

How does a car’s air conditioning system work? Is it virtually the same as all other A/C systems? When you put your hand on those vents, how is the air so perfectly wintry? Amazingly, there are many phenomena that function consistently every time you crank up that A/C. Learn some of the major ones below!

1. Compression

Before any of the cooling occurs, a whole lot of compression must come first. An A/C compressor typically takes a refrigerant and compresses it so that the gas is under high pressure. Once this high-pressure refrigerant moves through the high-pressure tube, it comes in contact with the condenser. Because A/C compressors are often powered by engine-accessory belts, a worn-out belt can interfere with the functionality of the compressor.

2. Condensation

Many of us know condensation as a main player in the hydrologic cycle. In an automobile’s A/C system, condensation occurs inside the A/C condenser, where the gaseous refrigerant is exchanged with the warm cabin air. Located between the grille and the radiator, the A/C condenser should be kept clean; a clogged condenser or a malfunctioning cooling fan can cause a decline in the coolness of the air. A leaking condenser would mean the loss of the refrigerant, and therefore a less effective exchange between the cool and the warm air.

3. Evaporation

After passing the high-pressure tubing, the refrigerant (in liquid form at this point due to condensation) comes across the orifice tube (also called a thermal expansion valve). Because the orifice tube permits only a little bit of refrigerant to pass at a time, the pressure is relieved, and the refrigerant transforms back into a gaseous form. This dramatic pressure reduction cools the refrigerant. And as the refrigerant evaporates back into gas form due to the hot air, the heat from the passing air gets trapped and the air becomes chilly.


Today, achieving the perfect arctic cool is possible with a simple turn of a knob or a press of a button; contrary to its effortless appearance on the outside, however, the A/C system’s inner workings are quite intricate. To find out about more about automotive A/C systems or discuss any troubles you have with them, ask away at H.W. Automotive Inc.!

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