2019 Ford Flex AC Isn't Working

Common Causes of AC Malfunctions in Your 2019 Ford Flex 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 Ford Flex 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 Ford Flex?

When your 2019 Ford Flex's AC isn't functioning, start by checking the thermostat settings to ensure they are correctly adjusted to a cool temperature, as incorrect settings can often be the simplest explanation for the issue. Next, inspect the air filters; dirty or clogged filters can significantly restrict airflow, leading to poor cooling performance. If the filters are clean, examine the refrigerant levels, as low refrigerant can result in warm air blowing from the vents. You can use a pressure gauge for this step or seek professional help if you're unsure. Additionally, look for any visible signs of leaks in the AC system, such as oily residue around hoses or connections, which can indicate a refrigerant loss. The AC compressor is another critical component to check; listen for unusual noises and visually inspect it for any signs of damage. Finally, ensure that all electrical connections related to the AC system are secure and functioning properly, as faulty electrical components can prevent the system from operating effectively. By following these steps in order, you can systematically diagnose and potentially resolve the AC issues in your Ford Flex.

What are the common problems that could cause the AC system to stop working in a 2019 Ford Flex?

When your 2019 Ford Flex's AC system fails to cool, several common problems may be at play. First, check the refrigerant levels, as low refrigerant can significantly impair cooling performance. If the refrigerant is adequate, the next step is to inspect the compressor; a faulty compressor can prevent the system from generating cool air altogether. Additionally, electrical issues such as blown fuses or damaged wiring can disrupt the AC's operation, so examining these components is crucial. Another area to investigate is the condenser; if it is clogged or leaking, it can severely affect cooling efficiency. Lastly, ensure that the cooling fans are functioning properly, as inadequate airflow can hinder the system's performance. By systematically checking these components, you can identify and address the issues affecting your AC system, potentially saving on costly repairs.

How urgent is it to address the non-functioning AC in a 2019 Ford Flex?

When faced with a non-functioning AC in your 2019 Ford Flex, it is crucial to recognize the urgency of the situation. Driving without air conditioning in hot weather can lead to severe discomfort and health risks, particularly for vulnerable passengers such as children and the elderly. The lack of a functioning AC not only detracts from the overall driving experience but can also distract the driver, impairing focus and concentration on the road. Moreover, a malfunctioning AC may indicate underlying problems within the vehicle's cooling system, which, if left unaddressed, could escalate into more significant issues and costly repairs. By prioritizing the repair of your AC, you not only enhance your comfort and safety but also prevent further wear and tear on the system, ultimately saving money in the long run. Therefore, it is advisable to take immediate action to resolve any AC issues to ensure a safe and pleasant driving experience.

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