Texans serving Texas since 1950

Call Us Now:

Austin Metro (512) 246-5400
San Antonio (210) 651-1212
Temple (254) 773-7175
New Braunfels (830) 627-2211

How To Tell If Your Furnace Limit Switch Needs Replacing

What Is the Limit Switch on a Furnace?

The furnace limit switch is a crucial safety device that regulates the temperature inside your heating system. It prevents the furnace from overheating by turning off the burner when necessary and ensures the blower fan operates only when appropriate. Without this safety feature, your furnace could overheat, causing potential damage to the system or even posing a fire risk.

What Does a Furnace Limit Switch Do?

In simple terms, the furnace limit switch monitors the temperature within the heat exchanger. When the temperature rises beyond a safe level, the switch automatically shuts off the burner to avoid overheating. Additionally, it controls the blower fan, ensuring it only runs when the air is warm enough to circulate throughout your home. A faulty limit switch can lead to problems like the blower running continuously or the furnace shutting down unexpectedly.

Signs You Need Limit Switch Repair

If the limit switch malfunctions, it can lead to issues like unexpected shutdowns, continuous fan operation, or even damage to your furnace. Below, we’ll break down the key signs that indicate your furnace limit switch may need repair or replacement.

If you’re experiencing issues with your furnace limit switch, don’t wait! Contact Christianson Air Conditioning & Plumbing for professional furnace switch replacement services. We’re here to ensure your furnace operates safely and efficiently all season long!

Signs Your Furnace Limit Switch Needs to be Replaced Infographic

Sorry, comments for this entry are closed at this time.


Copyright © 2024 Plumbing & Air Conditioning Company - Austin, TX

Licenses M-18631, M-18632, LI15740, TACLA023749C

Regulated by The Texas Department of Licensing and Regulation

P.O. Box 12157, Austin, Texas 78711, 1-800-803-9202, 512-463-6599, Website: http://www.tdlr.texas.gov