Car A/C Service & Repair

You know how uncomfortable it can be when your air conditioning isn’t working properly. But what causes these issues, and how can they be fixed?

Your car’s A/C system relies on refrigerant to absorb heat from the interior and release it outside. If there’s a leak in the system, the refrigerant level drops, and your A/C loses its cooling power. Our techs use advanced leak detection tools to pinpoint the source. Once we’ve located the leak, we’ll repair or replace the faulty component, then recharge your system with the proper amount of refrigerant.

The compressor pumps refrigerant through the system, allowing it to absorb and release heat. If the compressor fails, your A/C will blow warm air or stop working altogether. Common causes of compressor failure include lack of lubrication, electrical issues, or simple wear and tear over time. If your compressor has failed, we’ll replace it with a high-quality unit designed specifically for your vehicle. We’ll also flush the entire A/C system to remove any debris that the failing compressor may have introduced, so your new one has a fresh slate.

The condenser releases the heat that the refrigerant has absorbed from your car’s interior. It does this by converting the refrigerant from a hot gas back into a cool liquid. If the condenser is damaged, clogged with debris, or leaking refrigerant, your A/C won’t be able to cool your car effectively. During our diagnostic process, we’ll visually inspect your condenser for signs of damage or leaks. We’ll also clean any debris that may be blocking airflow through the condenser fins. If the condenser is beyond repair, we’ll replace it with a new unit.

Your car’s A/C system has a complex network of electrical components—like relays, fuses, pressure switches, and the compressor clutch—that control when and how the system operates. If any of these parts fail, your temperature can feel “inconsistent,” or your A/C might not turn on at all. We use diagnostic equipment to quickly identify electrical issues in your A/C system and replace the faulty components.

Over time, dirt, dust, and other debris can accumulate in your A/C system’s filters, fins, and air passages. This restricts airflow and reduces your system’s cooling performance. The most common example is a dirty cabin air filter, which filters the air that enters your car’s passenger compartment. As part of our A/C service, we’ll clean out any clogs or blockages in your system, replace your cabin air filter with a fresh one, and ensure all airflow passages are clear.

Inside your car’s dashboard, there’s a small flap called the blend door that directs air through either the heater core or the evaporator, depending on whether you’re trying to heat or cool your car. If this door gets stuck or the actuator that controls it fails, you may get warm air from your vents even when the A/C is turned on. Our technicians can diagnose blend door issues and repair or replace the faulty components as needed.

Now, the best way to avoid problems is to catch them early. That’s why we always recommend getting your car’s A/C checked out every year, even if it seems to be working fine. A little preventative maintenance can save you a lot of money and discomfort down the road. But if your A/C is already giving you trouble, don’t put it off. Come on down to Telle Tire and let us take a look. With 25 locations across Missouri, expert service is always just around the corner.