Quality Air Services - Chicago's Certified HVAC Services

In Chicago's cold winters, a short-cycling furnace—turning on and off too frequently—is often caused by an oversized unit, a faulty flame sensor, or restricted airflow from a dirty filter. Our technicians perform a comprehensive diagnostic to pinpoint the exact cause. We then provide precise repairs or adjustments, such as cleaning the sensor, sealing duct leaks, or recalibrating the system, to restore normal operation, improve efficiency, and prevent unnecessary wear on your furnace.

For most Chicago homes, we recommend checking your HVAC air filter every month and replacing it at least every 90 days. However, if you have pets, allergies, or live in a dustier area, you may need to change it as often as every 30-60 days. A clogged filter severely restricts airflow, forcing your system to work harder, which can lead to issues like short cycling and even system failure. During our maintenance visits, we always check and can remind you when it's time for a replacement.

Our Chicago-focused maintenance visit is a thorough check-up designed to prevent problems like short cycling and poor airflow. We inspect and clean critical components, including the flame sensor and heat exchanger, test system controls and safety devices, check refrigerant levels (for AC), measure airflow, and replace your air filter if needed. This proactive service catches small issues before they become major repairs, ensures your system runs efficiently to handle our seasons, and helps extend the lifespan of your equipment.