Eci Mechanical | Certified HVAC Repair in Markham, IL

This is called short-cycling, and it's a common issue we see in Markham homes, especially with older systems or due to a clogged air filter. It strains your furnace and increases energy bills. ECI Mechanical can diagnose the root cause—whether it's a faulty thermostat, airflow restriction, or overheating limit switch—and perform the precise repair to restore normal, efficient operation.

Furnace ignition failure is a frequent winter emergency call for us. The cause is often a dirty or faulty flame sensor, a problem with the ignition control module, or a blocked gas valve. Our technicians are equipped to safely troubleshoot and clean or replace these components, getting your heat back on quickly to protect your home from freezing temperatures.

Before calling for service, check a few simple things: ensure your thermostat is set to "heat" and above room temperature, confirm the furnace's power switch is on, and replace your air filter if it's dirty. If the furnace still won't run or ignite, it's time to call ECI Mechanical. We'll provide a prompt diagnosis and expert repair to solve the underlying issue.