Here's the first thing you need to understand: your HVAC system is a sealed loop. Refrigerant doesn't get "used up" like gas in your car. If the refrigerant level is low, that means one thing — it leaked out somewhere. There's no other explanation.

I bring this up because I still get calls from homeowners who've had another company come out and "top off" their refrigerant without ever finding or fixing the leak. That's like bailing water out of a boat with a hole in it. You're paying money, the problem's still there, and the clock is ticking on your compressor.

What a Leak Actually Does to Your System

When refrigerant is low, your system starts working harder to do the same job. You'll feel it as weak airflow, rooms that won't cool down, or humidity creeping up inside the house even though the AC is running. What you won't feel — at least not right away — is the damage happening to your compressor. That component is the heart of your system, and it's not designed to run without the right refrigerant charge. Keep running it that way long enough, and a leak that might have cost a few hundred dollars to repair turns into a compressor replacement or a full system change-out.

In Johnson and Tarrant counties, we run our systems hard. Burleson, Cleburne, Crowley, Benbrook — these neighborhoods can see the AC run nearly nonstop from late May through September. A small leak that might be a nuisance somewhere up north can spiral into a serious breakdown here in a matter of weeks.

One More Thing Worth Knowing

The refrigerant world is changing right now. Newer systems are moving away from R-410A toward refrigerants like R-32 and R-454B. Some of these newer refrigerants have a mild flammability rating, which means proper handling and certified technicians matter more than ever. If someone's working on your system, make sure they're trained and licensed for the equipment they're touching. At PSC, we stay current on all of it — that's not optional in my book.

Take 10 Minutes This Week

Walk around both your indoor and outdoor units and look for any of these early warning signs:

• Ice or frost on the refrigerant line or around the indoor coil
• Warm or lukewarm air coming from the vents while the system is running
• The system running longer than usual to reach your set temperature
• Indoor humidity that feels higher than normal
• A hissing or bubbling sound near either unit

Catch one of these early and you're probably looking at a straightforward repair. Wait until the system quits on a Friday afternoon in July, and your options get a lot more expensive and a lot more uncomfortable.

If anything on that list sounds familiar, give us a call at (817) 393-1700. We'll find the leak, fix it right, and get you squared away before the real heat arrives.