Diagnosing and Resolving a Dangerous Heating Issue

A new client in Mundelein, IL reached out to Legacy Heating & Cooling with concerns about their Bryant high-efficiency furnace, which was not heating properly. Our team promptly assessed the system to identify the issue and restore proper operation.

Initial Diagnosis and Repair

Upon inspection, we discovered that the low-voltage terminal on the control board was intermittently cutting out voltage. To address the issue, we:

• Depressed the pins on the low-voltage terminal board to secure the terminals
• Restored functionality to the furnace, which resumed heating properly

As part of our service, we provided a complimentary furnace tune-up to ensure the system was running optimally.

Heat Exchanger Inspection and Critical Discovery

During the tune-up, we conducted a thorough heat exchanger inspection. Bryant furnaces, Carrier, and other subsidiary brands are known to have defective secondary heat exchangers in high-efficiency models manufactured between 1989 and 2012. This particular furnace was manufactured in 2011.

We confirmed a crack in the component by removing the blower motor and using a camera to inspect the secondary heat exchanger. While this discovery was alarming but also lifesaving, as a cracked heat exchanger can pose a significant health risk due to carbon monoxide leakage.

The Dangers of a Cracked Heat Exchanger

A heat exchanger’s primary function is to remain sealed, safely venting combustion gases like carbon monoxide out of the home. A crack compromises this sealed system, allowing harmful gases to enter the home’s supply air. This poses a serious threat to occupant safety.

Thankfully, our inspection identified the issue before any harm occurred. We advised the client to replace the furnace with a new high-efficiency model to ensure their safety and comfort moving forward.

Protecting Your Home in Mundelein, IL

This case highlights the importance of regular furnace maintenance and inspections. Identifying issues like a cracked heat exchanger early can prevent dangerous situations and ensure your home remains safe and comfortable.

For reliable HVAC services in Mundelein, IL, contact Legacy Heating & Cooling. For peace of mind, schedule a maintenance appointment or consultation today.