M & M Heating & Air - Greensboro's Experienced HVAC Services

If your Greensboro home's AC is running constantly but not cooling effectively, or you notice ice forming on the refrigerant lines or evaporator coil, a refrigerant leak is a likely culprit. Our technicians use specialized tools to locate and seal the leak, then recharge your system to the manufacturer's specifications for optimal performance.

In the Greensboro area, with our pollen-heavy springs and variable seasons, we recommend checking your standard 1-inch filter every month and replacing it at least every 90 days. If you have pets or allergies, changing it monthly is best. A clean filter protects your HVAC system, improves indoor air quality, and helps prevent breakdowns from overworked components.

Short-cycling—when your system turns on and off frequently—is often caused by issues like a clogged air filter, incorrect thermostat placement, or a refrigerant leak. It strains the system and increases energy costs. Our expert diagnosis identifies the root cause, whether it's a simple filter change, thermostat recalibration, or leak repair, to restore proper, efficient operation for your home.