2020 Mitsubishi Mirage AC Isn't Working

Common Causes of AC Failure in Your 2020 Mitsubishi Mirage and How to Fix Them

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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 2020 Mitsubishi Mirage 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 steps should I take to diagnose the AC issue in my 2020 Mitsubishi Mirage?

To effectively diagnose the AC issue in your 2020 Mitsubishi Mirage, start with the simplest solutions before moving on to more complex diagnostics. Begin by checking the air filters, as dirty or clogged filters can significantly restrict airflow and diminish AC performance. Next, inspect the refrigerant levels; low levels may indicate a leak or other underlying problems. The compressor is another critical component, so examine it for any signs of damage or malfunction, as it plays a vital role in the AC system's operation. Additionally, test the thermostat to ensure it is functioning correctly, as a faulty thermostat can lead to inconsistent cooling. Look for any visible leaks in the AC system, as these can severely impact efficiency. Don’t forget to check the electrical components, as faulty connections can also cause AC issues. If you are unable to identify the problem after these checks, it may be time to consult a professional mechanic or AC technician for further assistance. By following this diagnostic approach, you can systematically address potential issues and restore your vehicle's cooling system effectively.

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

When your 2020 Mitsubishi Mirage's air conditioning system fails to cool, it can be frustrating, but understanding the common issues can help you diagnose the problem. One of the primary culprits is low refrigerant levels, which can occur due to leaks or insufficient charging, preventing the AC from delivering cold air. Another frequent issue is a faulty compressor; if the compressor isn't functioning properly, it won't circulate refrigerant effectively, 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 refrigerant lines can also hinder performance, as blockages prevent proper refrigerant flow, while leaks can lead to a loss of cooling efficiency. Lastly, issues with the condenser or evaporator can significantly impact the cooling process, as these components are crucial for heat exchange. By identifying these common problems, DIYers can take the first steps toward troubleshooting and potentially resolving AC issues in their Mitsubishi Mirage.

How urgent is it to address the non-functioning AC in a 2020 Mitsubishi Mirage?

When faced with a non-functioning air conditioning system in your 2020 Mitsubishi Mirage, it is crucial to recognize the urgency of the situation. A malfunctioning AC can significantly detract from your driving comfort, especially during sweltering summer months or on long journeys, making it essential to address the issue promptly. Moreover, safety is a paramount concern; a faulty AC can lead to fogged windows, impairing visibility and increasing the risk of accidents. Ignoring the problem can also result in further damage to the AC system, leading to more extensive repairs and higher costs in the future. Additionally, maintaining a fully operational AC system is vital for preserving your vehicle's resale value, as potential buyers are likely to be deterred by a car with a malfunctioning air conditioning unit. Therefore, it is advisable to take immediate action to resolve any AC issues, ensuring a comfortable, safe, and valuable driving experience.

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Troubleshooting 2020 Mitsubishi Mirage AC Issues | RepairPal