2019 Subaru Impreza AC Isn't Working

Common Causes of AC Failure in Your 2019 Subaru Impreza and How to Fix Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2019 Subaru Impreza AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial steps to diagnose the AC issue in a 2019 Subaru Impreza?

When diagnosing an AC issue in a 2019 Subaru Impreza, start by checking the airflow from the vents to ensure it is strong and cool. Weak airflow or warm air can indicate a problem within the system. Next, inspect the refrigerant levels; low levels can severely impact cooling performance, so it's essential to verify that they are within the recommended range. Following this, examine the AC compressor for any signs of damage or unusual noises, as a malfunctioning compressor can prevent the AC from working effectively. Additionally, inspect the AC belts for wear and tear, as damaged belts can hinder the system's operation. It's also crucial to check for any visible leaks in the AC system, as these can lead to refrigerant loss and reduced cooling efficiency. Finally, test the electrical components, including fuses and relays, to ensure they are functioning properly. By systematically following these steps, you can effectively diagnose the AC issue and determine the necessary repairs for your Subaru Impreza.

What are the common problems that could cause the AC to stop working in a 2019 Subaru Impreza?

When your 2019 Subaru Impreza's AC system fails to deliver cool air, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, leading to poor cooling performance. If the compressor is faulty, it may not circulate the refrigerant properly, resulting in a complete lack of cooling. Electrical issues, such as blown fuses or damaged wiring, can also disrupt the AC's functionality, so checking these components is essential. Additionally, a clogged or leaking condenser can hinder the system's ability to cool air, while malfunctioning cooling fans can prevent adequate airflow, further exacerbating the problem. By identifying these issues, you can take the necessary steps to diagnose and potentially fix the AC system in your Subaru, ensuring a comfortable ride.

How urgent is it to address the non-functioning AC in a 2019 Subaru Impreza?

When it comes to a non-functioning AC in your 2019 Subaru Impreza, the urgency of addressing the issue cannot be overstated. While it may not seem like an immediate emergency, the consequences of neglecting this problem can significantly impact your driving experience. A malfunctioning AC system compromises comfort, especially during hot weather, making long drives unbearable and potentially leading to driver fatigue. Moreover, safety is a critical concern; without a functioning AC, foggy windows can obscure visibility, increasing the risk of accidents. Additionally, ignoring AC issues can result in more extensive damage to the system, leading to costly repairs that could have been avoided with prompt attention. Lastly, maintaining your vehicle's AC system is essential for preserving its resale value; a well-functioning AC makes your car more appealing to potential buyers. Therefore, it is advisable to address any AC issues as soon as they arise to ensure a safe, comfortable, and valuable driving experience.

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2019 Subaru Impreza AC Not Working: Causes & Repairs