Why your AC freezes up in the middle of July

Ice on the copper line is almost never the compressor. Here's the short list of what actually causes it.

You walk outside on a 112° afternoon and there's a block of ice on your line set. Counterintuitive, right? Here's what's really happening.

Airflow is starving the coil. A dirty filter, collapsed duct, or blocked return will drop coil temperature below freezing. Change the filter, open every register, and give it two hours to thaw.

Low refrigerant. A slow leak lowers pressure inside the coil, which lowers temperature, which freezes moisture in the air. This one needs us.

Blower motor slowing down. Older motors lose torque quietly. If your system freezes every couple of weeks, this is the usual suspect.

If you see ice, turn the system to FAN ONLY, not off — that will thaw the coil without cracking anything. Then call us.