2016 Subaru Forester AC Isn't Working

Common Causes of AC Failure in Your 2016 Subaru Forester and How to Restore Comfort

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Reviewed by
Aisha
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 2016 Subaru Forester 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 short circuit in the wiring can disrupt the electrical signals needed for proper operation of 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 2016 Subaru Forester?

When diagnosing an AC issue in your 2016 Subaru Forester, start with a thorough visual inspection of the AC system. Look for any obvious signs of wear, damage, or leaks, as these can often indicate the source of the problem. Next, conduct a performance test by turning on the AC and assessing its cooling efficiency; if the air is not as cold as expected, this could signal a deeper issue. Following this, perform a pressure and leak test to check the refrigerant levels and ensure there are no leaks in the system. This step is crucial, as low refrigerant levels can severely impact AC performance. By systematically following these steps, you can effectively narrow down the potential causes of the AC malfunction, whether it be related to refrigerant levels, compressor functionality, or other common issues, allowing you to address the problem more efficiently.

What are the common problems that could cause the AC to stop working in a 2016 Subaru Forester?

When dealing with a malfunctioning AC system in a 2016 Subaru Forester, it's essential to understand the common problems that could be at play. One of the most frequent culprits is a refrigerant leak, which can significantly diminish the cooling capacity of the system. Additionally, electrical climate control issues may arise, where faulty components disrupt the AC's operation. The air conditioning compressor is another critical component; if it suffers from wear or mechanical failure, it can prevent the system from cooling effectively. A clogged cabin air filter can also restrict airflow, leading to poor cooling performance. Furthermore, dirty condenser or evaporator coils can hinder the heat exchange process, while a sluggish blower motor may fail to circulate air properly. Lastly, a faulty fuse or relay can interrupt the electrical supply to the AC system. By identifying these issues, DIYers can take proactive steps to troubleshoot and potentially resolve the AC problems in their Subaru Forester, ensuring a comfortable driving experience. Regular maintenance is key to preventing these issues from arising in the first place.

How urgent is it to repair the non-functioning AC in a 2016 Subaru Forester?

Addressing the non-functioning AC in your 2016 Subaru Forester is not just a matter of comfort; it is an urgent necessity that can significantly impact your driving experience and vehicle safety. A malfunctioning AC system can lead to uncomfortable heat during summer months, making long drives unbearable and distracting you from the road. Moreover, if the AC fails to dehumidify the air, it can cause your windows to fog up, severely impairing visibility and increasing the risk of accidents. Beyond immediate comfort and safety concerns, neglecting AC issues can diminish your vehicle's resale value, as potential buyers often look for well-maintained systems. Additionally, what may start as a minor issue can escalate into more severe problems, leading to costly repairs down the line. Therefore, it is crucial to prioritize the repair of your AC system to ensure a safe, comfortable, and valuable driving experience.

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