What are the common signs of a Freon leak in an air conditioner?

Common signs include reduced cooling efficiency, hissing or gurgling sounds, ice buildup on evaporator coils, increased humidity levels, and unusual chemical odors. In Bozeman, MT, these symptoms are particularly concerning due to the region's warm summers.

How does a Freon leak affect my air conditioner's performance?

A Freon leak reduces the refrigerant level, causing the air conditioner to work harder to cool your home, leading to increased energy consumption and potential system damage. In Bozeman, MT, this can result in higher electricity bills and discomfort during the warmer months.

What should I do if I suspect a Freon leak in my air conditioner?

If you suspect a Freon leak, contact a professional HVAC technician to diagnose and repair the issue promptly. In Bozeman, MT, Premier Systems offers reliable services to address such concerns.

Can I repair a Freon leak myself?

Repairing a Freon leak requires specialized knowledge and equipment. It's recommended to hire a certified HVAC technician to ensure safety and proper repair. In Bozeman, MT, Premier Systems provides expert services for such repairs.

How can I prevent Freon leaks in my air conditioner?

Regular maintenance, such as annual inspections and timely repairs, can help prevent Freon leaks. In Bozeman, MT, scheduling routine check-ups with Premier Systems can keep your system running efficiently.

Seven Signs of a Freon Leak That You Should Not Ignore

Premier Systems

November 5, 2022

Freon leaks are exceedingly common and can have numerous adverse effects on your air conditioner and the environment. That’s why it’s critical to identify refrigerant leaks as soon as possible to prevent them from spiraling out of control.

Many Montana residents don’t know what to look for when they suspect their air conditioner suffers from a Freon leak. The heating and cooling specialists at Premier Systems have put together this list of the most common signs of Freon leaks. We’ll help you resolve the issues before they worsen.

Premier Systems is one of Montana's most trusted heating and air conditioning companies. Our team has extensive experience maintaining and repairing all the leading HVAC systems from the biggest names in the industry. If you need a reliable air conditioner repair contractor in Montana, contact Premier Systems.

Most Common Signs of a Freon Leak

Refrigerant, also called Freon, is your air conditioner’s lifeblood. In the air conditioning process, Freon cools the air before the AC unit transfers it to your home. Without Freon, your air conditioning system can’t generate chilled air, leaving your home uncomfortable during hot summer months.

Freon leaks can cause your air conditioning unit to break down prematurely. They significantly hinder the system’s efficiency, longevity, integrity, and more while causing your electricity payments to soar. They can also negatively impact the environment, increasing your carbon footprint.

It’s essential to know the prevalent signs of Freon leaks so you can quickly resolve them. Below are some of the most common indications of a Freon leak.

1. Frozen Evaporator Coils

Evaporator coils absorb heat within your air conditioner and allow the unit to generate chilled air efficiency. When Freon runs low or a leak occurs, the evaporator coils freeze and prevent the system from producing conditioned air. Although frozen coils might seem trivial at first, they can cause numerous issues that demand costly repairs.

Frozen evaporator coils are relatively easy to identify since ice crystals engulf them and typically drip from the unit. If you notice frozen evaporator coils or water pooling around the AC unit, contact Premier Systems. We will refill the Freon and resolve any other issues plaguing the system.

2. Hissing or Gurgling Sounds Coming from the Air Conditioner

Most Freon leaks occur when the unit’s coils that distribute the refrigerant crack or fissure. The damaged coils often produce an unusual hissing or gurgling sound during system operation, signifying a Freon leak.

Hissing noises tend to indicate a small leak, while gurgling sounds signify a major leak. It’s best to contact a professional heating and cooling company as soon as the unit begins to hiss. Doing so will prevent the leaks from worsening.

3. The Air Conditioner Stops Producing Cool Air

Freon helps air conditioners generate cold air so your home stays cool and comfortable during hot weather. If the AC unit doesn’t have enough Freon, the air conditioner can’t produce chilled air.

If your air conditioner stops cooling your home but continues operating, you likely have a refrigerant leak or need to refill the Freon. Always check your unit’s refrigerant levels if your air conditioning system stops producing cold air. Although other issues can cause your system to stop conditioning air, low refrigerant is the primary cause.

4. A Sudden Spike in Electricity Bills

Freon leaks put excessive stress on air conditioners. A leak requires an AC to work harder to maintain a comfortable room temperature, significantly increasing energy consumption. The elevated energy demand skyrockets your energy bills, costing you hundreds over time.

If you see a sudden increase in your monthly energy payments, always contact a professional heating and cooling company. They can evaluate your unit for refrigerant leaks.

5. Elongated Cooling Cycles

Functional air conditioners have short cooling cycles and can cool a home relatively quickly. AC units with Freon leaks often have elongated cooling cycles and take much longer to chill a home. The extended cooling cycles are incredibly frustrating, leaving your home cold and uncomfortable for longer periods of time.

If your air conditioner takes longer to cool your home, it likely suffers from a Freon leak. Repairing the refrigerant leak will restore your unit’s cycling time and make it easier to condition your home.

6. Increased Humidity

Air conditioners do more than produce chilled air. They remove hot, dense air from your home and convert it into light, chilled air.

Freon leaks prevent the air conditioner from withdrawing warm, muggy air from your home. As a result, you’ll notice a significant increase in your residence’s humidity levels.

Excessive indoor humidity makes your home more prone to mold and mildew growth. Bacteria like mold thrive in humid environments and can cause numerous health problems, including but not limited to:

Coughing
Wheezing
Watery eyes
Runny nose
Difficulty breathing
Headache
Fatigue

Repairing the Freon leak and refilling the air conditioner’s refrigerant will enable it to remove humid air more efficiently. You’ll protect your home from mold, mildew, and other hazardous bacteria.

7. The Air Smells Like Exhaust

Freon is a toxic chemical that produces a foul-smelling odor similar to exhaust. This substance is exceedingly dangerous, causing brain damage and even death in severe overexposure cases.

Air conditioners with significant Freon leaks often release fumes into the air and your home, which can severely impact your indoor air quality. If your home smells like exhaust or chemicals, evacuate your home and contact a professional heating and cooling service immediately. A technician will assess your air conditioner and fix the leak, ensuring your home’s indoor air is safe to breathe.

The Premier Systems team offers 24/7 emergency services to repair your Freon leak swiftly.

Contact Premier Systems for High-Quality Air Conditioning Repair Services in Montana

Premier Systems is Montana’s number-one refrigerant leak repair service. Our team will teach you the most common signs of a Freon leak so you can resolve the issue before it adversely affects your home.

Call us today at (406) 823-3602 to learn what the Premier Systems team can do for you!

< Older Post

Newer Post >

How to Keep Your Indoor Air Clean When Wildfire Smoke Is in the Air

April 28, 2026

Wildfire season has become an increasingly common part of life in Southwest Montana, especially for homeowners in Bozeman, Belgrade, and Four Corners. While the smoky haze outside is easy to see, what’s happening inside your home is often less obvious. Many people assume that simply closing windows and doors will keep them safe—but wildfire smoke can still enter your home and impact your indoor air quality (IAQ) in ways that affect both comfort and health. Why Wildfire Smoke Indoors Is a Serious IAQ Concern Wildfire smoke is made up of extremely fine particles called PM2.5, which are small enough to pass through tiny openings and even some standard HVAC filters. Once inside your home, these particles can circulate through your ductwork and linger in the air. For homeowners in our area, poor indoor air quality during wildfire season can lead to: Coughing, sneezing, and throat irritation Headaches and fatigue Aggravated asthma or allergies Increased strain on your HVAC system Without proper filtration and system maintenance, your home’s air may not be as clean as you think. How Smoke Affects Your HVAC System Your HVAC system plays a major role in managing your indoor air quality —especially during wildfire events. When smoke enters your home, your system can either help remove harmful particles or unintentionally spread them throughout your space. If your system isn’t equipped with the right components, you may experience: Reduced filtration of fine smoke particles Dirty ductwork circulating contaminants Increased wear and tear on system components Decreased efficiency and airflow This is why homeowners across Bozeman and Belgrade are upgrading their systems to better handle wildfire smoke conditions. HVAC Solutions to Improve Indoor Air Quality During Wildfire Season The most effective way to protect your home’s air is through professional HVAC solutions designed specifically for indoor air quality in Four Corners, Belgrade, and Bozeman. Upgrade to HEPA or High-Efficiency Filters Standard filters aren’t designed to capture the smallest smoke particles. Upgrading to HEPA filters or high-MERV rated filters allows your system to trap significantly more airborne contaminants, improving your IAQ immediately. Install Whole-Home Air Purification Systems Advanced air purification systems integrate directly into your HVAC system to continuously clean the air as it circulates. These systems are especially effective during wildfire season when outdoor air quality is poor for extended periods. Add an Air Scrubber Air scrubbers go beyond traditional filtration by actively removing pollutants, odors, and particles from the air and surfaces in your home. This added layer of protection can make a noticeable difference in homes affected by wildfire smoke. Schedule Professional Duct Cleaning If smoke has entered your home, particles can settle inside your ductwork. Duct cleaning removes built-up contaminants and prevents them from being recirculated, helping restore cleaner air throughout your home. Keep Up with HVAC Tune-Ups Regular HVAC tune-ups ensure your system is running efficiently and filtering air properly. During wildfire season, a well-maintained system is critical for maintaining healthy indoor air quality. Long-Term Protection for Homes in Bozeman, Belgrade & Four Corners Wildfire smoke isn’t just a temporary inconvenience—it’s an ongoing challenge for homeowners in Southwest Montana. Investing in indoor air quality solutions through your HVAC system provides long-term protection for your home and your family. By combining: High-efficiency filtration Whole-home air purification Air scrubbers Clean ductwork Routine system maintenance …you can significantly reduce the impact of wildfire smoke indoors. Breathe Easier with the Right HVAC Support Your home should be a place where you can escape poor outdoor air—not bring it inside. With the right HVAC upgrades and maintenance, you can take control of your indoor air quality in Bozeman, Belgrade, and Four Corners, even during the peak of wildfire season. If you’re noticing smoke lingering in your home or want to prepare ahead of time, working with a trusted HVAC professional can help you choose the best solutions for cleaner, healthier air. Cleaner indoor air starts with the right system—and the right team behind it.