2019 Lincoln Nautilus AC Isn't Working

Common Causes of AC Malfunctions in Your 2019 Lincoln Nautilus and How to Resolve Them

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Reviewed by
Devin Cabugcal
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 Lincoln Nautilus 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 best Lincoln repair shops?

RepairPal Certified shops can diagnose and repair your 2019 Lincoln Nautilus climate control issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
30 Certified Locations
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Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
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Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
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All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
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Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
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What are the steps to diagnose the AC issue in a 2019 Lincoln Nautilus?

To effectively diagnose an AC issue in your 2019 Lincoln Nautilus, start with the simplest solutions before delving into more complex assessments. Begin by checking the air filters, as clogged cabin and engine air filters can significantly restrict airflow and diminish AC performance. Next, inspect the refrigerant levels using a gauge; low levels may indicate a leak that requires attention. Following this, examine the AC compressor for any signs of wear or damage, as a faulty compressor can severely impact cooling efficiency. It’s also crucial to test the AC controls to ensure they are functioning correctly, as malfunctioning controls can prevent the system from blowing cold air. Additionally, look for any visible leaks in the AC system, particularly around connections, as these can lead to refrigerant loss. Finally, check all electrical connections related to the AC system for security and corrosion, as poor connections can cause operational failures. By systematically following these steps, you can diagnose and address AC issues effectively, restoring comfort to your driving experience.

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

When the air conditioning system in your 2019 Lincoln Nautilus stops functioning, it can be frustrating, but understanding the common problems can guide you in diagnosing the issue. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, preventing the system from cooling effectively. Another frequent issue is a faulty compressor; if the compressor is not engaging or is damaged, it will fail to circulate refrigerant, leading to inadequate cooling. 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 condensers can also hinder the system's performance, as they are crucial for dissipating heat. Lastly, malfunctioning cooling fans can prevent proper airflow, further compromising the AC's ability to cool the cabin. By identifying these common problems, you can take the first steps toward troubleshooting and potentially fixing the AC system in your vehicle.

How urgent is it to address the non-functioning AC in a 2019 Lincoln Nautilus?

When faced with a non-functioning AC in your 2019 Lincoln Nautilus, it is crucial to recognize the urgency of the situation. Driving without air conditioning in hot weather can lead to significant discomfort and health risks, particularly for sensitive passengers, making it essential to prioritize repairs. Additionally, a malfunctioning AC can detract from the overall driving experience, creating distractions that could compromise safety on the road. Moreover, this issue may indicate underlying problems within the vehicle's cooling system, which, if left unaddressed, could escalate into more severe damage and costly repairs. Timely intervention not only enhances your comfort but also helps maintain the vehicle's resale value, preventing further financial strain. Therefore, addressing the AC issue promptly is advisable to ensure a safe and enjoyable driving experience.

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