AC Not Cooling in Memphis - Dirty Coils and Low Refrigerant Fixed

A thermostat flashing a cooling problem alert late at night is never a good sign - especially in Memphis July heat. That's exactly what this homeowner was dealing with. The system had been running for hours without making a dent in the indoor temperature. Time to dig in and find out why.

Here's what we found. The condenser coil was packed with debris - leaves had piled up inside the unit and the coil fins were caked with a thick layer of dirt and grime, blocking airflow almost completely. On top of that, the air filter inside was long overdue for a change. That combination alone is enough to make any AC system struggle.

But it didn't stop there. The refrigerant was low too. We weighed in the R-410A charge using a calibrated refrigerant scale to make sure we got the levels right - not a rough estimate, an actual measured recharge. That matters. Too little refrigerant and the system can't transfer heat properly. Too much and you risk damaging the compressor.

We cleaned out the condenser, cleared the coil, and got the refrigerant back to where it needed to be. The system went from losing ground on the indoor temperature to actually cooling the home down again. That's what a proper AC repair and maintenance visit looks like - not just a quick look and a top-off, but a full no-cooling diagnostic to find every reason the system was falling short.

If your AC is running constantly but the house just won't cool down, don't wait it out. That's usually a sign something specific is wrong - and the longer it runs in that condition, the harder it is on the equipment.