The outdoor coil becomes stopped up with scaling and small dirt particles while the indoor coil becomes covered with mold, mildew, lint and dust. Mold also grows in the primary drain pan, making its way to the drain line.

During warm, humid months, this mold and mildew can grow at a rate fast enough to stop up the drain line, causing water to run into the unit, damaging electrical components, and run over onto the ceiling, damaging insulation and sheet rock. If the unit is under the house, mold can cause moisture damage in the crawl space. While in air condition mode during Summer months, as the coils become dirtier, the indoor coil picks up heat at a much slower rate and the outdoor coil expels that heat at an equally slower rate. Also, the compressor runs at a higher pressure, which shortens its life and causes it to use more energy, resulting in higher energy bills.

Money spent on preventive maintenance is money saved on energy usage and replacement of a shortlived compressor. Killman Heating & Air conducts a 21-point inspection and cleaning, which includes chemically cleaning and treating both the indoor and outdoor coils and treating drain pans and drain lines to prevent stoppages that cause water damage. The absolute key to a unit running as efficiently as it did at installation is keeping the indoor and outdoor coils clean. This allows the compressor to operate at factory specified pressures, which will allow the unit to provide lasting comfort for you and your family for years to come.