Signs of a Failing Furnace Ignitor

Identifying failure signs early is critical for maintaining home comfort, especially during our long Minnesota winters. As your local Comfort Specialists, we have found that most silicon carbide ignitors in the Twin Cities area typically last three to five years before they begin to fail.

Common signs that your furnace ignitor is failing include:

• No Heat: The furnace runs and blows air, but it never produces actual heat.
• Glowing without Ignition: You may see the ignitor glow through the inspection window, but the gas fails to ignite.
• Short Cycling: The furnace starts and stops repeatedly in a short amount of time.
• Visible Physical Damage: If you inspect the component, you might see clear cracks or dark discoloration on the ignitor surface.

If you notice these symptoms, we recommend immediate action. While some homeowners use a multimeter for hot surface ignitor testing, we strongly advise against DIY repairs due to the risks associated with gas lines and high-voltage electrical circuits. Additionally, DIY attempts can void your manufacturer’s warranty.

We offer 24-hour emergency service and fair and honest pricing to ensure your system is restored safely. Our technicians not only replace the part but also inspect safety switches and gas pressure to prevent future issues. We back our residential work with a 100% written satisfaction guarantee.

• Furnace Ignitor Replacement Cost: Average Prices & Savings Tips