
Furnace flame sensor with wire harness

Furnace flame sensor. The flame sensor monitors the burner to detect whether or not a flame is present. If the flame sensor is defective, the furnace may not heat.
Ensure the efficiency and safety of your heating system with high-quality GrandAire furnace flame sensors available at Repair Clinic. These OEM sensors are crucial for detecting the presence of a flame and preventing gas leaks, making them essential parts for maintaining your furnace's performance. Common issues like the furnace not heating or burners not staying lit can often be traced back to faulty flame sensors. By choosing genuine GrandAire parts, you ensure compatibility and reliability, reducing the risk of future malfunctions. At Repair Clinic, we provide a vast selection of replacement parts to empower both DIYers and professionals, offering peace of mind with every purchase. Explore our GrandAire furnace parts page to find the right parts for your model and enjoy same-day shipping and expert repair resources.
Ensure your GrandAire furnace operates efficiently with top-quality flame sensors from Repair Clinic. A faulty flame sensor can cause your furnace to stop heating, leading to discomfort and potential safety issues. Our genuine OEM GrandAire flame sensors are designed to quickly restore your furnace's performance. By ordering before 9:00 PM ET, you benefit from our same-day shipping, reducing downtime and helping you resolve heating problems fast. Whether you're a homeowner tackling DIY repairs or a professional technician, Repair Clinic provides the parts and support you need for reliable furnace operation. For other HVAC parts, visit our HVAC Parts page.


Ensure your GrandAire furnace runs smoothly by ordering high-quality flame sensors from Repair Clinic. We offer a No-Hassle 365-Day Return Policy, allowing you to return any uninstalled parts within a year of purchase, ensuring peace of mind. Plus, with our Price Match Guarantee, you can be confident you're getting the best deal on genuine OEM replacement parts. Easily find the right flame sensor by using your model or part number for quick and accurate lookup. Repair Clinic supports DIYers and professionals with same-day shipping on orders placed by 9:00 PM ET, helping you get your furnace back up and running without delay. Explore our vast selection of GrandAire furnace parts and enjoy the convenience of online ordering.
Identifying your furnace model number is essential for finding compatible parts and accurate repair help. Watch this video for tips on locating the model number, and visit our website's furnace repair section for troubleshooting tips, part testing guides, and part replacement videos tailored to your specific furnace.

Need help finding the right furnace parts? Repair Clinic's trained customer care specialists are available 7:00 AM to midnight EST, seven days a week. Whether you have questions about part compatibility or need assistance placing an order, our experts are here to help. The Repair Clinic customer care team is dedicated to ensuring your furnace is back in working order quickly and efficiently.

A furnace that fails to ignite can leave your home in the cold. Common issues include a faulty igniter, malfunctioning flame sensor, or a defective draft inducer fan motor. Replacing furnace filters and cleaning furnace parts can help prevent these problems.

Learn why your furnace isn't working by understanding its ignition sequence and identifying common faulty parts like the igniter, flame sensor, or control board. This article provides practical repair tips and insights into each component's role in the heating process.

A gas furnace that starts and then stops unexpectedly can be frustrating, especially during cold weather. This article explains five common causes, including issues with the flame sensor, pressure switch, control board, draft inducer fan motor, or air flow. Learn how each cause may impact your furnace's operation and get tips to resolve the problem.