2022 Subaru Ascent AC Isn't Working

Common Causes of AC Malfunctions in Your 2022 Subaru Ascent and How to Fix Them

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Reviewed by
Bo Fader
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 2022 Subaru Ascent 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 2022 Subaru Ascent?

To effectively diagnose an AC issue in your 2022 Subaru Ascent, start with the simplest and most accessible checks. Begin by inspecting the air filters; clean or replace them if they appear dirty, as this can significantly improve airflow and overall AC performance. Next, verify the refrigerant levels in the system, as low refrigerant can lead to inadequate cooling. If the levels are low, you may need to recharge the system. Following this, examine the AC compressor for any visible signs of damage or wear, as a malfunctioning compressor can hinder cooling efficiency. Additionally, test the thermostat to ensure it is accurately regulating the cabin temperature; a faulty thermostat can lead to inconsistent cooling. Finally, check for any leaks in the AC system, as refrigerant loss due to leaks can severely impact performance. By systematically addressing these areas, you can effectively diagnose and potentially resolve AC issues in your Subaru Ascent.

What are the common problems that could cause the AC to stop working in a 2022 Subaru Ascent?

When the air conditioning system in your 2022 Subaru Ascent ceases to function, it can be frustrating, especially during hot weather. One of the most frequent culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, leading to inadequate cooling. Another common issue is a faulty compressor; if the compressor fails, it won't circulate refrigerant effectively, resulting in warm air blowing from the vents. Additionally, electrical problems such as blown fuses or damaged wiring can disrupt the AC's operation, preventing it from turning on or functioning properly. Clogged or leaking refrigerant lines can also impede the flow of refrigerant, further diminishing the system's performance. Moreover, issues with the condenser or evaporator can hinder the cooling process, while a malfunctioning blower motor may reduce airflow, making it difficult to feel the cool air inside the cabin. For those looking to tackle these issues themselves, it's crucial to diagnose the problem accurately, as some repairs may require specialized tools or knowledge. Always consider consulting a professional if you're unsure about the repairs needed to restore your AC system's functionality.

How urgent is it to address the AC failure in my 2022 Subaru Ascent?

When faced with an AC failure in your 2022 Subaru Ascent, it is crucial to recognize the urgency of the situation. Driving without a functioning air conditioning system in hot weather can lead to significant discomfort and even health risks, particularly for vulnerable passengers. Moreover, a malfunctioning AC may signal deeper issues within the vehicle's cooling system, which, if left unaddressed, could escalate into more severe and costly repairs. This not only affects your immediate driving experience but can also compromise the engine's performance and longevity. Additionally, timely repairs can help maintain the resale value of your Subaru Ascent, as potential buyers are likely to be wary of vehicles with known issues. Therefore, while the severity of the AC failure may vary, it is generally advisable to address the problem promptly to ensure your safety, comfort, and the overall health of your vehicle.

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Troubleshooting 2022 Subaru Ascent AC Issues | RepairPal