Diagnosing Cracked Heat Exchangers in Residential Furnaces

Safety is the priority in every furnace diagnostic. Using AC/C TECH certified protocols, we inspect the heat exchanger for stress cracks caused by years of thermal expansion. A crack allows carbon monoxide (CO) to enter the living space. We utilize combustion analysis to monitor the flue gas and ensure your burner is firing at the correct gas pressure for optimal efficiency.

How do I know if my furnace heat exchanger is cracked?

Common signs include a “flickering” burner flame when the blower starts or excessive soot inside the cabinet. However, many cracks are invisible to the eye, which is why we perform a pressure differential test to ensure the seal is intact.

Professional Furnace Service

Ensure your home is safe and warm with an engineering-first diagnostic.