Is your air conditioner struggling to cool your home? If so, a leaking AC refrigerant line could be to blame. While it may sound like a minor issue, a refrigerant leak poses serious risks to both your HVAC system and your health.
At Air Docs Heating & Cooling, we want homeowners to understand why refrigerant leaks should never be ignored. Here, we explain how to spot them, why they’re dangerous, and what to do if you suspect your system is leaking.
What Is Refrigerant and Why Does It Matter?
Refrigerant is the chemical responsible for absorbing heat from your home and enabling your air conditioner to cool the air. The three most relevant types for homeowners today are:
- R-410A – Still found in many existing systems but officially phased out for new equipment by the EPA due to its high global warming potential (GWP).
- R-22 (Freon) – Fully phased out and only found in older systems. IT is no longer produced or imported in the U.S.
- R-454B and other low-GWP alternatives – These newer refrigerants are now being used in new HVAC systems. They offer lower environmental impact and are expected to become the new industry standard.
IMPORTANT: Refrigerant isn’t a fuel; it doesn’t get “used up” over time. If your system is low on refrigerant, it’s due to a leak.
When refrigerant escapes, your AC system can’t cool properly. It may begin to run longer, overheat components like the compressor, and eventually require costly repairs or replacement.
Warning Signs of a Refrigerant Leak
Here are common symptoms homeowners should never ignore:
- Your AC blows warm air or struggles to cool evenly.
- Higher energy bills due to the system running longer to reach set temperatures
- Ice buildup/frost on refrigerant lines or evaporator coils
- Hissing or bubbling noises caused by gas escaping under pressure
- A sweet or chloroform–like smell may indicate refrigerant in the air
Leaks often start small and worsen over time. Even if your system “still runs,” these signs are warnings that shouldn’t be brushed off.
Is Refrigerant Dangerous? Yes, and Here’s Why
Refrigerant leaks are a health hazard. While R-410A and Freon don’t smell strong, inhaling these gases can cause:
- Dizziness or fatigue
- Nausea or headaches
- Respiratory irritation or difficulty breathing
- Loss of coordination or, in rare cases, more severe neurological symptoms
Children, pets, and those with asthma or respiratory conditions are especially vulnerable. Exposure can happen silently while your system runs. That’s why AC refrigerant poisoning risks should be taken seriously, and repairs left to licensed professionals certified to handle refrigerants.
Can You Keep Using an AC That’s Leaking?
Short answer: No.
Running your system with a refrigerant leak is dangerous for two reasons: 1. It circulates refrigerant into your home’s air and 2. Low refrigerant causes the compressor to overheat and fail, leading to repairs that may cost more than a new system.
You might be tempted to “top off” the refrigerant, but this is just a temporary patch – and in some cases, illegal if the leak isn’t repaired first.
What To Do If You Suspect a Leak
If you notice any of the signs above, take these steps:
- Turn off your AC to prevent further damage or exposure
- Avoid DIY attempts to recharge or repair the leak
- Call a licensed HVAC technician for a full diagnostic and safe repair
Only professionals with EPA certification can legally handle refrigerant and identify the exact source of the leak.
How Much Does It Cost To Repair an AC Refrigerant Leak?
Repair costs vary depending on the location and severity of the leak:
- Minor Leaks: $200-$400
- Moderate Leaks: $400-$950 (may involve replacing coils or connections)
- Severe Leaks: $1,000+ (especially if the compressor is damaged)
If your system uses R-22, it may be more cost-effective to replace the system rather than repair it due to refrigerant scarcity and cost.
Don’t Wait – Fix Leaking Refrigerant the Right Way
A leaking AC refrigerant line is a major safety concern and a leading cause of HVAC failure. If you’re searching for a reliable AC repair team, trust the licensed professionals at Air Docs Heating & Cooling.
We provide expert diagnosis, certified handling, and long-term solutions to keep your system running.
Call us today at (772) 356-1311 to schedule your AC inspection or repair and protect your family and your HVAC investment.