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Flame sensor
Upgrade your furnace's performance with genuine WeatherKing Sensor & Thermistor parts from Repair Clinic. Ensuring your furnace operates efficiently and safely, these OEM parts are designed to detect and regulate temperature, preventing overheating and ensuring optimal performance. Common issues like a furnace not heating or shutting off prematurely can often be traced back to faulty sensors. By choosing WeatherKing parts, you guarantee compatibility and durability. Explore our extensive catalog to find the exact replacement part for your model, and trust Repair Clinic to provide fast shipping and expert repair resources. For those looking to broaden their search, we also offer parts for other top brands like Carrier and Lennox, available through our Carrier Furnace Parts and Lennox Furnace Parts pages.
When your WeatherKing furnace needs a sensor or thermistor replacement, Repair Clinic has you covered with genuine parts and same-day shipping to ensure your heating system is up and running quickly. Common issues like a faulty flame sensor can prevent your furnace from heating efficiently, but with our extensive inventory and fast shipping options, you'll have peace of mind knowing the right part is on its way. Order by 9:00 PM ET, and we'll ship it the same day, helping you tackle repairs promptly. Explore our range of WeatherKing parts and get your furnace back to optimal performance today. For more details on our extensive selection, visit our HVAC Parts page.


Ensure your WeatherKing furnace operates efficiently with our selection of flame sensors available for online ordering. At Repair Clinic, we offer a No-Hassle 365-Day Returns policy, allowing you to return uninstalled parts within a year of purchase. Our Price Match Guarantee ensures you get the best deal on genuine OEM replacement parts. Easily find the right flame sensor by entering your furnace's model or part number into our search tool. With same-day shipping on in-stock items, your WeatherKing furnace will be back to peak performance in no time. Trust Repair Clinic for reliable support from trained technicians, available seven days a week, to assist with any troubleshooting or repair questions you might have. Visit our replacement parts page to explore our complete range of furnace parts and accessories.
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.