When your car’s air conditioner starts blowing hot air, a simple refrigerant gas “top-up” is not a permanent solution. Your car’s air conditioning is a complex, sealed system that requires specialised equipment and solutions, and while a DIY kit may seem like the cheaper option, it often results in repeat failures and a much larger repair bill. At JLA Automotive, we offer comprehensive car aircon service, guaranteeing an accurate diagnosis and a long-lasting fix. Read on as we guide you through the top reasons why your car aircon is failing and why professional repair is essential to keeping your aircon running smoothly.
Refrigerant Leak
Refrigerant leaks are one of the most common causes of poor cooling. The refrigerant is responsible for cooling the cabin air by absorbing and releasing heat. If refrigerant levels are low, it may indicate that gas is escaping through a leak and preventing the system from reaching the necessary pressure to cool the air.
Symptom: The air may feel cool initially, but quickly warms up as the system fails to maintain pressure.
Broken Compressor
The air conditioner compressor is the pump that circulates refrigerant throughout the system. If the compressor stops functioning correctly, the refrigerant will be unable to transition through the phases required to generate cold air, resulting in warm air emitting from your air con.
Symptom: Unusual noises like grinding or squealing when your air con is turned on, often indicating an internal mechanical failure.
Faulty Condenser
Located at the front of the car, the condenser acts as a heat exchanger, releasing heat from the refrigerant gas and dissipating it to the outside. As it utilises air flow to assist in cooling, a blockage or a buildup of debris prevents air from reaching the condenser, preventing the refrigerant from cooling correctly.
Symptom: Warm air blowing from the air con, unusual noises coming from the system, or there is visible debris on the front of the unit.
Electrical Malfunction
The electrical system in your car controls how your air conditioning functions, from the compressor clutch engagement to the speed of your cooling fans. A simple fault, like a blown fuse, faulty relays, or bad wiring, can cause inconsistent performance or shut down the entire cooling cycle.
Symptom: The compressor clutch is not engaging, the fan is only blowing out hot air, or the system is failing to turn on.
Failed Cooling Fans
Cooling fans play an important role in the air conditioner’s performance. It pulls air through the radiator to help the engine’s cooling system regulate temperature, preventing it from overheating. When your cooling fans fail to work, the heat exchange immediately stalls, and your refrigerant stays hot, resulting in warm air from the vents.
Symptom: Your engine overheats when the car is moving at low speeds or is stationary.
Visit a Professional
Getting your car’s air con professionally fixed is more than just keeping the air cool; it’s about maintaining optimal engine performance for your car long term. JLA offers comprehensive air conditioning services, including car aircon regas, leak detection and repairs, component replacement, and system cleaning. If you’re looking for professional car aircon regas in Perth, give us a call today!
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