
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.

Thermocouple kit
Ensure your Garrison furnace operates efficiently with genuine OEM sensor and thermistor parts from Repair Clinic. These parts are vital for accurate temperature regulation and system safety. Common issues such as a furnace not heating or having a faulty flame sensor can be resolved by replacing these critical parts. Our selection includes flame sensors and thermocouples, designed to fit perfectly and restore your furnace's optimal performance. For homeowners and technicians seeking reliable replacement parts, Repair Clinic offers peace of mind with our comprehensive inventory and expert support. Explore our Garrison furnace parts page for more options.
When your Garrison furnace needs a replacement sensor or thermistor, Repair Clinic is your go-to source for genuine parts with the convenience of same-day shipping. Order by 9:00 PM ET, and your parts will be shipped swiftly to ensure your furnace is back in working order in no time. Sensors like the flame sensor and thermocouple are crucial for safe and efficient furnace operation. If your furnace isn't heating or the burners won't stay lit, a faulty sensor could be the cause. Our extensive inventory and fast shipping help homeowners and technicians tackle repairs quickly and confidently. Explore our HVAC parts section for more essential parts.


Easily shop for Garrison furnace sensor and thermistor parts online at Repair Clinic. We offer a hassle-free 365-day return policy, allowing you to return uninstalled parts for any reason within a year of purchase. Our price match guarantee ensures you get the best deal on all genuine OEM replacement parts. Simply enter your model number or part number for a quick lookup and same-day shipping options. Shop with confidence and keep your Garrison furnace running efficiently with our reliable parts and customer support available seven days a week.
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.