2019 Subaru Crosstrek AC Isn't Working

Common Causes of AC Malfunctions in Your 2019 Subaru Crosstrek and How to Fix Them

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Reviewed by
Andrew Hajjar
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 Crosstrek 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 diagnostic steps to take when the AC isn't working in a 2019 Subaru Crosstrek?

When your 2019 Subaru Crosstrek's AC isn't functioning properly, start by checking the thermostat settings to ensure they are correctly adjusted. Sometimes, the simplest solution is just a matter of misconfiguration. Next, inspect the air filters; dirty or clogged filters can significantly hinder airflow, so replacing them can often restore AC performance. It's also crucial to examine the refrigerant levels, as low levels can lead to warm air blowing from the vents. If you suspect a refrigerant issue, using a pressure gauge can help you assess the situation, or you may want to consult a professional for a more accurate evaluation. Additionally, look for any visible leaks in the AC system, as these can indicate a loss of refrigerant and affect cooling efficiency. Pay attention to the AC compressor as well; it should engage when the AC is turned on, and if it doesn't, it may require repair or replacement. Lastly, check the electrical connections related to the AC system to ensure they are secure and free from corrosion, as faulty connections can impede the system's performance. By following these diagnostic steps, you can effectively troubleshoot and potentially resolve the AC issues in your Subaru Crosstrek.

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

When troubleshooting the air conditioning system in a 2019 Subaru Crosstrek, it's crucial to consider several common issues that could lead to a malfunction. One of the primary culprits is low refrigerant levels, which can significantly hinder the system's ability to cool the air effectively. If the refrigerant is low, it may indicate a leak that needs to be addressed. Another potential problem is a faulty compressor; if the compressor is not functioning properly, it won't circulate the refrigerant, resulting in warm air blowing from the vents. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's operation, preventing it from turning on or functioning correctly. Clogged or leaking condensers can also impede the cooling process, as they are essential for dissipating heat from the refrigerant. Lastly, broken cooling fans can lead to inadequate airflow, further diminishing the system's cooling performance. Identifying and addressing these issues promptly can help restore the AC functionality in your Subaru Crosstrek, ensuring a comfortable driving experience.

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

When faced with a non-functioning AC in your 2019 Subaru Crosstrek, it is crucial to recognize the urgency of the situation. Driving without air conditioning in hot weather can lead to significant discomfort and even health risks, particularly during the sweltering summer months. Beyond personal comfort, a malfunctioning AC can detract from the overall driving experience, making it harder to concentrate on the road. Moreover, this issue may indicate underlying problems within the vehicle's cooling or electrical systems, which, if left unaddressed, could escalate into more severe and costly repairs. By prioritizing the repair of your AC system, you not only enhance your driving comfort but also mitigate the risk of further damage and additional repair expenses down the line. Therefore, taking prompt action to fix your AC is not just a matter of convenience; it is essential for maintaining the safety and reliability of your vehicle.

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