Kilometer High Technologies | Trusted HVAC Services in Durham, NC

In Durham's climate, with its pollen and seasonal debris, we recommend checking your air filter every month and replacing it at least every 90 days. More frequent changes may be needed if you have pets or allergies. A clean filter is crucial for preventing strain on your system, improving air quality, and avoiding the premature failures we commonly see in local air handlers.

Yes, that's a common symptom we service in Durham homes. If the outdoor unit is running but you're not feeling cool air, the issue is often inside with the air handler's blower fan. It could be a failed motor, a bad capacitor, or a clogged filter restricting airflow. We recommend turning the system off and calling us for a diagnostic to prevent further damage to your HVAC system.

Our local Durham maintenance service is designed to catch problems early. It includes a full system inspection, cleaning of critical components, checking refrigerant levels, testing electrical connections, and most importantly, inspecting and replacing your air filter. This proactive care specifically targets the common culprits of clogged filters and fan wear, helping to extend your system's life and improve efficiency year-round.