AC Not Keeping Up? A Refrigerant Recharge Might Be the Fix

When an AC stops keeping up, most homeowners assume the worst - a failed compressor, a major repair, a full replacement. But a lot of the time, the real culprit is low refrigerant. The system is still running, just not doing its job. That's exactly the kind of situation we work through on calls like this one.

We start with a full diagnostic before touching anything. Checking the electrical panel on the outdoor unit, inspecting the contactor and wiring, pulling the filter to see what kind of airflow restriction we're dealing with - all of it matters. A clogged 16x20 filter and dirty evaporator coils can make an undercharged system perform even worse, so we look at the whole picture, not just the refrigerant level.

Our Fieldpiece SMAN refrigerant manifold gives us real-time pressure and temperature data so we know exactly what the system needs. No guessing. We check superheat, subcooling, suction and discharge pressures - all of it. That data tells us whether a recharge is the right call and how much refrigerant the system actually needs to run properly.

Once the recharge is done, we verify it. An infrared temperature gun reading the suction line at 55.6 degrees F is a solid confirmation that the system is absorbing heat the way it should. That's the kind of check that tells us the repair actually worked - not just that the system is running, but that it's cooling efficiently.

Low refrigerant doesn't fix itself, and running a system that's undercharged puts real wear on the compressor over time. If your AC has been struggling to keep up, a proper diagnostic is the right first step. We track down the issue and get things running right.