2016 Subaru Legacy Ac Isn't Working

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

Find Repair Location
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 Legacy 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 2016 Subaru Legacy?

When diagnosing an air conditioning issue in a 2016 Subaru Legacy, it's essential to adopt a systematic approach that begins with the most straightforward checks before delving into more complex diagnostics. Start by inspecting for refrigerant leaks, as these are common culprits in AC failures. Look for signs such as oil buildup or the presence of AC dye, which can indicate a leak. Next, examine the condenser for any debris or damage that could obstruct airflow; clearing any blockages can significantly improve performance. It's also crucial to evaluate the compressor's functionality, particularly the clutch, as unusual noises may signal a malfunction. Ensure that all electrical connections are secure and check the AC fuse, replacing it if necessary. If the fuse continues to blow, this may point to deeper electrical issues. Additionally, verify the system pressure with a gauge, as abnormal readings can indicate various problems. Don't overlook the cabin air filter; a clogged filter can hinder airflow and cooling efficiency. Finally, test the climate control system to ensure it operates correctly, as any malfunction here can affect the entire AC system. By following these steps, you can effectively narrow down the potential causes of the AC issue and determine whether professional help is needed for further diagnosis and repair.

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

When dealing with a malfunctioning air conditioning system in a 2016 Subaru Legacy, it's essential to understand the common problems that may arise. One of the primary culprits is the AC compressor, particularly known for issues related to the AC clutch, which can fail to disengage properly, leading to excessive pressure and potential failure. Additionally, refrigerant leaks are a frequent concern, often stemming from worn O-rings at the connections between the high and low side lines and the compressor. Another area to inspect is the condenser, which can become blocked by debris or suffer physical damage, necessitating replacement. Electrical issues, such as a blown AC fuse or deeper wiring problems, can also disrupt the system's functionality. Furthermore, a clogged cabin air filter can hinder cooling efficiency, making regular maintenance crucial. Lastly, the blend door actuator, responsible for regulating temperature and airflow, may malfunction, resulting in inconsistent cooling. By understanding these common issues, DIY enthusiasts can better diagnose and address AC problems in their Subaru Legacy, ensuring a more comfortable driving experience.

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

Repairing the non-functioning AC in your 2016 Subaru Legacy should not be overlooked, as it plays a significant role in your driving experience. While it may not seem urgent, the discomfort caused by high temperatures can affect both driver and passenger well-being, especially for vulnerable individuals. Additionally, if the AC issue stems from a refrigerant leak or compressor malfunction, delaying repairs can lead to more extensive damage, potentially affecting other components of the system and resulting in costly repairs. Electrical problems, such as blown fuses, may also indicate deeper issues within the vehicle's electrical system, which could escalate if not addressed promptly. Furthermore, a malfunctioning defroster can compromise visibility during adverse weather conditions, posing a safety risk. Therefore, addressing the AC issue in a timely manner is essential not only for comfort but also for preventing further damage and ensuring the overall reliability and safety of your vehicle.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.