in , , ,

What You Need To Know About Trane Air Conditioners: Do They Use Freon?

Ducane Vs.Lennox: Which One To Select For Your HVAC System?

The use of Freon as a refrigerant in air conditioners has long been associated with ozone depletion and environmental concerns. If you’re interested in the environmental impact of your AC’s coolant and want to know whether Trane air conditioners use Freon, we have researched the topic to provide you with the necessary information.

Trane air conditioners manufactured after 2010 no longer use Freon. However, Trane ACs manufactured before 2010 still utilize this refrigerant.

The EPA’s ban on the manufacturing and importation of Freon has created some complexity in the AC market, leading to confusion. In this article, we will guide you on how to determine if your AC uses Freon and provide insights into indicators that your AC may require a recharge, as well as tips for maintaining a central air conditioner.

Identifying Freon Usage In Your Air Conditioner

Freon, also known as R22 or HCFC-22, has been a popular refrigerant for central air conditioners for many years. However, due to its detrimental impact on the environment, regulations have been implemented to phase it out.

To determine the type of refrigerant your AC uses, you can check the label on the unit. Air conditioners that utilize Freon will indicate the presence of R-22 or HCFC-22.

Trane air conditioners manufactured after 2010 use R-410A as a replacement for Freon. For older Trane AC units, it’s important to check the label to identify the specific coolant being used.

The Significance Of Knowing Your AC’s Refrigerant

What You Need To Know About Trane Air Conditioners: Do They Use Freon?

Understanding the refrigerant used in your air conditioner is crucial because potential bans on certain refrigerants can have significant implications for maintenance. If a ban is imposed, recharging your AC system may become cost-prohibitive or even impossible, necessitating the replacement of your unit.

Additionally, using environmentally friendly products is advisable, as the depletion of the ozone layer leads to increased UV radiation on the Earth’s surface. This, in turn, contributes to immune deficiency disorders, eye cataracts, and certain types of skin cancer.

What To Do If Your Trane AC Uses Freon

The refrigerant in your air conditioner circulates in a closed loop and is expected to last the lifetime of the unit. If your Trane air conditioner is in good working condition, there is no immediate cause for concern. However, it’s still important to take preventive measures to avoid refrigerant leaks.

Engaging the services of an HVAC technician to perform regular maintenance and check for any minor leaks is recommended. If any leaks are detected, it’s crucial to have them sealed promptly to minimize potential future repair costs and extend the useful life of your unit.

While it is possible to retrofit some units to use approved refrigerants, the process can be complex and expensive. Therefore, replacing the R-22 refrigerant with the approved R-410A is generally not advisable. In such cases, upgrading to a more energy-efficient appliance would be a better long-term solution.

Indicators Your Air Conditioner Requires A Recharge

What You Need To Know About Trane Air Conditioners: Do They Use Freon?

If your air conditioner is low on refrigerant or completely devoid of it, it will not perform optimally. The refrigerant plays a critical role in absorbing and releasing heat as it flows through the AC system. Here are some signs that your AC may require a recharge:

  1. Warm Air From Vents
    If the AC is set to cool and warm air is blowing from the vents, it may indicate a refrigerant leak. Inadequate refrigerant prevents the unit from effectively absorbing heat from the indoor air.
  2. Ice Or Frost On The Refrigerant Lines
    Insufficient refrigerant causes the evaporator coils to become excessively cold, resulting in the refrigerant changing from a gas to a cold liquid. This liquid coolant freezes the moisture on the refrigerant lines.
  3. Dripping Or Water Pooling Near The AC
    As the ice or frost along the refrigerant line melts, it may result in water pooling or dripping. It is crucial not to ignore these signs, as they could indicate a refrigerant issue.
  4. Hissing Or Bubbling Sound From The Refrigerant Line
    Due to the high pressure of the refrigerant, it may make a hissing sound when leaking. If it drips through larger holes in liquid form, it can produce bubbling sounds.
  5. Higher-Than-Normal Electricity Bills
    Insufficient refrigerant causes the air conditioner to run continuously in an attempt to reach the desired temperature. This can lead to increased energy consumption and higher electricity bills.
  6. Chemical Odors
    Although Puron, an alternative refrigerant to Freon, is odorless, manufacturers may add a detectable scent to help identify leaks. If you notice an acidic or faintly-sweet smell, it could indicate a refrigerant issue.

What to Do Next

If you suspect a refrigerant leak in your AC, it is advisable to contact an HVAC professional for assistance. Attempting to repair the leak and recharge the coolant yourself is not recommended, as the refrigerant is toxic and can have harmful effects on your health, including breathing problems and even death.

During annual maintenance, you can request the technician to check the refrigerant levels in your unit, ensuring it is operating optimally.

Maintenance Tips For Central Air Conditioners

Regular maintenance is essential to keep your air conditioner functioning at its best and to identify any potential issues before they worsen. This helps maintain comfortable temperatures in your home and ensures smooth air conditioning. Here are some maintenance tasks that you can perform as a homeowner, as well as those best left to HVAC professionals:

Maintenance Tasks For Homeowners

What You Need To Know About Trane Air Conditioners: Do They Use Freon?
  1. Changing AC Filters
    Regularly changing your AC filters is crucial for trapping dust, lint, and other impurities. Dirty filters restrict airflow, leading to increased energy consumption, compromised indoor air quality, and reduced comfort. The frequency of filter changes depends on factors such as the filter type, the presence of pets or allergies, and the size of your home.
  2. Clearing The Area Around Your AC
    Maintaining a clean and debris-free area around your AC is important. Avoid planting vegetation within a two-foot radius of the unit, and ensure leaves and bird nests are removed to prevent them from interfering with the appliance.
  3. Leveling The Unit
    Keeping your unit level prevents internal components from becoming misaligned. You can use a level tool to ensure proper alignment, and if needed, use rot-resistant shims to adjust the base.

Maintenance Tasks For HVAC Professionals

  1. AC Coil Maintenance
    Your air conditioner has evaporator coils (inside the home) and condenser coils (outside the home). These coils need regular cleaning to maintain their efficiency in absorbing and releasing heat. HVAC professionals can clean the coils during annual maintenance and inspect them for any damage.
  2. Cleaning The Blower
    Dust accumulation on the blower can result in circulating contaminated air, negatively affecting indoor air quality. HVAC technicians can inspect and clean the blower motor, fan, and belt, as well as lubricate fan motors and pulleys for smooth operation.


By checking the label on your Trane air conditioner and understanding the refrigerant it uses, you can ensure environmental responsibility and make informed decisions about maintenance and potential upgrades. Regular maintenance, including tasks you can perform as a homeowner and those requiring professional assistance, helps prolong the lifespan of your AC and maintain efficient and comfortable cooling.

What You Need To Know About Trane Air Conditioners: Do They Use Freon?

What do you think?

Written by HVAC Contributor

Leave a Reply

Your email address will not be published. Required fields are marked *

GIPHY App Key not set. Please check settings

Quick And Easy Steps In Linking Your GE Air Conditioner With Amazon Alexa Or Google Home

Quick And Easy Steps In Linking Your GE Air Conditioner With Amazon Alexa Or Google Home

How To Properly Clean Your Heil Air Conditioner

How To Properly Clean Your Heil Air Conditioner