2020 Kia Sorento AC Isn't Working

Common Causes of AC Malfunctions in Your 2020 Kia Sorento 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 2020 Kia Sorento 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 2020 Kia Sorento?

When your 2020 Kia Sorento's AC isn't functioning properly, start by checking the thermostat settings to ensure it's set to a cool temperature. If the settings are correct, inspect the air filters for dirt or clogs, as these can significantly hinder airflow and cooling efficiency. Next, examine the refrigerant levels; low refrigerant can lead to warm air blowing from the vents, so consider having a professional check and recharge it if necessary. Additionally, look for any visible leaks in the AC system, particularly around hoses and connections, as these can indicate a more serious issue. Testing the compressor is also crucial, as it plays a vital role in the AC's operation; if it's not functioning correctly, it may need repair or replacement. Don't forget to check the electrical components, including fuses and relays, to ensure they are in good working order. Finally, using a diagnostic tool to scan for error codes can provide insights into specific problems within the AC system. By systematically following these steps, you can effectively diagnose and address the AC issues in your Kia Sorento, potentially saving time and money on repairs.

What are the common problems that could cause the AC to stop working in a 2020 Kia Sorento?

When the air conditioning system in a 2020 Kia Sorento fails to deliver cool air, several common problems may be at play. One of the primary culprits is low refrigerant levels, which can significantly hinder the system's ability to cool effectively. If the refrigerant is low, it may indicate a leak that needs to be addressed. Another frequent issue is a faulty compressor; if the compressor is not functioning properly, it will fail to circulate refrigerant, resulting in warm air blowing from the vents. Additionally, electrical problems such as blown fuses or damaged wiring can disrupt the AC's operation, making it essential to check these components. Clogged or leaking refrigerant lines can also impede the system's performance, as blockages prevent proper refrigerant flow. Lastly, a malfunctioning thermostat may fail to regulate the temperature correctly, further complicating the cooling process. By understanding these common problems, DIYers can better diagnose and potentially resolve AC issues in their Kia Sorento, although professional assistance may still be necessary for complex repairs.

How urgent is it to address the AC failure in my 2020 Kia Sorento?

When faced with an AC failure in your 2020 Kia Sorento, it is essential to recognize the urgency of the situation. A malfunctioning AC system not only detracts from your driving comfort, especially during sweltering summer months, but it can also pose safety risks. For instance, inadequate cooling can lead to fogged windows, impairing visibility and increasing the likelihood of accidents. Moreover, neglecting AC issues can escalate into more severe mechanical problems, potentially resulting in costly repairs that could have been avoided with early intervention. Additionally, maintaining a fully operational AC system is crucial for preserving your vehicle's resale value; prospective buyers are often deterred by vehicles that show signs of neglect. Therefore, while it may not seem like an immediate emergency, addressing AC failures promptly is vital for ensuring a safe, comfortable, and valuable driving experience.

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