Our Location: Phoenix (AZ)

We offer valleywide mobile windshield replacement services. 

Se Habla Espanol

Why is it Necessary to Check Car AC Before Summer Starts?


Preparing your car for rising temperatures is essential as the scorching summer sun approaches. One crucial aspect of ensuring a comfortable and safe driving experience during hot weather is checking your car’s air conditioning (AC) system. Neglecting this vital component could lead to discomfort, decreased fuel efficiency, and potential breakdowns on the road. In this comprehensive guide, we’ll find out why it is crucial to check car AC before summer arrives. You’ll discover expert tips, actionable insights, and answers to frequently asked questions, providing the knowledge to maintain your vehicle’s AC in top-notch condition.

Why is it Necessary to Check Car AC Before Summer Starts?

Before we delve into the details, let’s address the primary question: Why is it essential to check your car’s AC before summer starts? The answer lies in the air conditioning system’s critical role in providing a comfortable driving environment during hot weather. When temperatures soar, your car’s interior can become unbearably hot, making your driving experience unpleasant and unsafe. A properly functioning AC keeps you cool, reduces fatigue, improves focus, and enhances driving performance. Regular maintenance and pre-summer checks ensure that your car’s AC performs optimally when needed.

Signs of a Malfunctioning Car AC

1. Weak Airflow

If you notice reduced airflow from the AC vents, it could indicate several potential issues. One common cause is clogged filters, which hinder air flow into the cabin. Additionally, a failing blower motor may be unable to push sufficient air through the vents. It’s essential to promptly address weak airflow, as it can lead to discomfort during hot weather and strain the AC system.

2. Strange Noises

Unusual noises coming from the AC system are never a good sign. Rattling, hissing, or clunking sounds may indicate a problem with the AC compressor or other components. The compressor is responsible for pressurizing and circulating the refrigerant, and any malfunction can impact the overall cooling performance. If you hear strange noises from your car’s AC, it’s best to have it inspected by a professional mechanic to diagnose and resolve the issue.

3. Warm Air

One of the most apparent signs of a malfunctioning AC is when it blows warm air instead of cold. This issue can stem from various causes, such as refrigerant leaks or a faulty compressor. Refrigerant is the substance responsible for cooling the air; if it leaks or runs low, the AC won’t be able to generate cold air effectively. A faulty compressor may also fail to cool the air before it enters the cabin.

4. Foul Odors

A musty or unpleasant smell emanating from the AC vents is a common sign of mold or mildew growth in the AC system. The evaporator or the cabin air filter are typical places where moisture can accumulate, creating a breeding ground for mold and bacteria. Breathing in these contaminants can harm your health and lead to respiratory issues. Regularly changing the cabin air filter and running the AC in recirculation mode can help prevent foul odors.

5. Water Leaks

Puddles of water inside your car could be a telltale sign of a clogged drain tube or a malfunctioning AC evaporator. The AC system produces condensation as it cools the air, and this moisture is usually drained outside the car through a drain tube. If the drain tube becomes clogged, the water may overflow into the car’s interior. A malfunctioning AC evaporator can also lead to water leaks. Ignoring water leaks can damage your car’s interior and cause further AC problems.


 Today, more than 99 percent of all new cars are air-conditioned.


Pre-Summer AC Checklist

Before the summer heat takes over, follow this comprehensive checklist to ensure your car’s AC is in peak condition:

Checklist Items Details
Inspect Refrigerant Levels Ensure the AC system has the correct refrigerant levels to maintain proper cooling.
Clean or Replace the Cabin Air Filter Clean or replace the cabin air filter to prevent dust and pollen from entering the passenger compartment.
Check Belts and Hoses Inspect belts and hoses for cracks, wear, and proper tension.
Test the AC Compressor Verify that the compressor is functioning correctly to generate cold air.
Examine Condenser and Evaporator Coils Check for debris or dirt buildup on the condenser and evaporator coils, as they can hinder cooling.
Lubricate Blower Motor and Fans Proper lubrication ensures the blower motor and fans work smoothly.
Test Electronic Controls Verify that the electronic controls and sensors are functioning accurately.
Check for Refrigerant Leaks Detect and fix any refrigerant leaks in the AC system.
Clean the AC Condenser Fins Clear debris from the AC condenser fins for improved efficiency.
Ensure Proper AC Vent Operation Ensure all AC vents open, close, and direct air as intended.

Expert Tips for Maintaining Your Car’s AC

1. Regular Maintenance

Scheduling regular maintenance checks with a certified mechanic is crucial for keeping your car’s AC in top condition. A professional technician can inspect the system, identify potential issues, and perform necessary repairs. Regular maintenance ensures your AC operates efficiently and provides optimal cooling during the scorching summer months.

2. Run the AC Year-Round

Many car owners tend to neglect their AC during the colder months. However, running your car’s AC throughout the year, including during winter, is beneficial. Keeping the AC system operational prevents seals from drying out and refrigerant leaks. Moreover, using the AC periodically prevents components from seizing due to prolonged inactivity.

3. Park in Shade

Park your car in shaded areas to reduce the interior temperature whenever possible. Excessive heat inside the vehicle can strain the AC system and decrease efficiency. By parking in the shade, you’ll ensure a more relaxed cabin environment and extend the lifespan of your car’s AC components.

4. Use Recirculation Mode

Consider using the recirculation mode in your car’s AC system when driving in traffic or on dusty roads. Recirculation mode circulates the already cooled air within the cabin, preventing the introduction of hot or dusty air from the outside. This mode helps maintain a more relaxed interior and reduces the workload on the AC system.

5. Avoid Overworking the AC

Avoid the common mistake of setting the AC to the coldest temperature immediately after starting the car. This practice can overwork the system and strain the AC components. Instead, gradually lower the temperature to a comfortable level, allowing the AC to operate efficiently without unnecessary stress.

6. Ventilate the Cabin

Before starting your car on a hot day, roll down the windows briefly to allow the hot air to escape. Once ready to use the AC, please turn it on with the windows up. Ventilating the cabin beforehand reduces the initial load on the AC system and ensures quicker and more efficient cooling.


Check car AC before summer arrives for a comfortable and safe driving experience during hot weather. Following the pre-summer AC checklist and expert tips, you can check car AC performs optimally when needed. Regular maintenance and professional inspections will keep you cool and contribute to fuel efficiency and the overall longevity of your car’s AC. Stay proactive, and you’ll enjoy a refreshing drive throughout the summer heat!

A Premiere Auto Glass Company – Windshield Repair & Replacement Service in Phoenix, AZ, is only a call or click away!

Other Pages





Work Hours

We offer the highest quality customer service across Phoenix, Arizona, which includes guaranteed service for all types of vehicles. 

© 2024 Created with Digital Maxima

Wordpress Social Share Plugin powered by Ultimatelysocial