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Diagnosing Your Car’s Air Conditioning Issues

By: Milstead Automotive | Published 09/19/2022

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The air conditioning and heating system can be one of the most used and often overlooked systems in a vehicle. When the auto A/C isn't functioning properly, driving in the midst of summer or winter weather can be particularly uncomfortable. Air conditioning remains one of the most popular accessories in modern cars, so keeping it well maintained and adequately repaired will keep you and your passengers riding in comfort in any season. 

Problems with the air conditioning unit often develop over time. When left unchecked, A/C issues may worsen and become costly to repair. It is essential to schedule regular visits that include an A/C performance check. Here are some common reasons your car A/C might have stopped working.
 
Signs and Symptoms of Car Air Conditioner Issues
Don't wait for costly damages to occur. Several tell-tale signs indicate that your car's air conditioning system is likely failing. Here are the most common symptoms of auto air conditioning issues.
 
A/C is Leaking Refrigerant

Most fluid leaks are found in the car's A/C unit. Common A/C leaks occur in the condenser, soft line crimps, or high-pressure O-rings. These leaks are a main symptom technicians look for when your car's A/C is not working.
 
Foul Smell
If your air conditioner is emitting a foul smell when you turn on the air vents, your cabin air filter needs replacing. Mold and mildew buildup within the system and cause a bad smell. 
 
A/C is Blowing Warm Air
When the airflow is strong, but the air isn't as cool, this is often caused by leaks, clogs, or damaged parts. If your car A/C is not blowing cold air or simply not working, you might be dealing with leaking refrigerant, damaged cooling fan, or a faulty A/C compressor or condenser. 
 
Electrical Issues
Your auto air conditioning systems contain various switches and relays. These components can malfunction due to bad connections or corrosion that has built up on the leads. If your car A/C has an electrical issue, mechanics need to visually inspect all the wiring to see if any wires are broken or frayed.  
 
If you are experiencing any problems with your auto air conditioning, call us today to schedule an appointment. Our auto repair technicians are happy to inspect and service your vehicle's air conditioning and heating system. Following the recommendations stated in your car's manual will also ensure all necessary services are carried out on the air conditioning system on time to help and will help maintain its performance.

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