
Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Limit Switch

Switch lmt 140-20

Switch limit disc b

Switch lmt 170-20 sb

Limit switch350f -resetable

Auto limit switch l140-30f
Ensure the optimal performance of your Comfortmaker furnace with genuine OEM limit switch parts from Repair Clinic. Limit switches are crucial for maintaining safe operations by regulating the furnace's heat levels and preventing overheating. Common issues like the furnace not heating or shutting off too soon can often be traced back to faulty limit switches. By opting for high-quality replacement parts, you support reliability and safety in your heating system. For other furnace parts, browse our selection of Comfortmaker Furnace Parts or Comfortmaker Furnace Parts. Repair Clinic offers a wide range of HVAC parts to help homeowners and technicians resolve heating issues efficiently.
When your Comfortmaker furnace isn't heating efficiently, the limit switch might be the culprit. This essential part ensures your furnace operates safely by monitoring the temperature and shutting off the burner if it overheats. At Repair Clinic, we offer a wide selection of genuine Comfortmaker furnace limit switches to get your heating system back to optimal performance. Order by 9:00 PM ET, and we'll ship your parts the same day, ensuring you can complete your repairs swiftly. Whether you're a DIY enthusiast or a professional technician, rely on us for quick and reliable delivery. Don't forget to browse our HVAC Parts for all your heating and cooling needs.


Shopping for Comfortmaker furnace limit switches has never been easier with Repair Clinic. Our user-friendly platform allows you to effortlessly find the exact part you need by entering your model or part number. Enjoy the peace of mind that comes with our No-Hassle 365-Day Returns policy, allowing you to return uninstalled parts within a year for any reason. Plus, take advantage of our Price Match Guarantee, ensuring you pay the best price for genuine OEM replacement parts. Order by 9:00 p.m., and we'll ship your parts the same day, so you can get your furnace up and running without delay. Whether you're a DIY enthusiast or a professional technician, our trained support team is assist with any troubleshooting or repair queries you may have. Visit our replacement parts page for more.
Comfortmaker prints the model number on a data plate inside the front access panel on many furnaces. If it is not there, check the blower compartment door or the cabinet area near the gas valve. Look for a label listing the model number, not the serial number, and record every letter, number, and hyphen. Enter that information in the search bar to filter the full catalog to parts that fit your Comfortmaker furnace. This model number applies to the entire unit, so it narrows switches, controls, motors, and other associated parts at once. Use the model lookup before ordering to avoid comparing unrelated furnace versions and get a fast, accurate match.

Repair Clinic's online repair library gives you the tools to diagnose and fix your Comfortmaker Furnace without a service call. Common-symptom articles cover the most likely causes, part testing videos confirm the failed component, and step-by-step written guides walk you through the installation. Use the model number lookup to confirm the exact OEM part, and exploded-view diagrams and wiring illustrations support the more involved jobs.

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 part'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.