What Causes a Furnace Pilot Light to Go Off? - Troubleshooting Guide

By Expert at Uinta Mountain Mechanical 5/9/2026
A faulty furnace pilot light can be a frustrating issue, but it's often easy to fix. Common causes include drafts, dirty or clogged pilot light orifices, low gas pressure, thermocouple issues, and electronic ignition problems. At Uinta Mountain Mechanical, we provide expert HVAC maintenance and heating services to help you troubleshoot and resolve the issue. Our team serves areas including Orem, Mapleton, and Spanish Fork, and we're available 24/7 for emergency repairs. Contact us today at (385) 274-0072 to schedule your service.

If you're experiencing issues with your furnace pilot light, you're not alone. Many homeowners in Spanish Fork, Orem, and surrounding areas have faced similar problems. At Uinta Mountain Mechanical, we've seen our fair share of faulty furnace pilot lights, and we're here to help you troubleshoot the issue. In this post, we'll explore the common causes of a furnace pilot light going off and provide you with tips on how to fix it.

Common Causes of a Furnace Pilot Light Going Off

A furnace pilot light can go off due to various reasons. Some of the most common causes include:

  • Drafts or air leaks in the furnace room
  • Dirty or clogged pilot light orifice
  • Low gas pressure
  • Thermocouple issues
  • Electronic ignition problems

It's essential to identify the root cause of the problem to fix it effectively. Our HVAC maintenance services can help you detect and resolve issues before they become major problems.

Troubleshooting Tips

Before calling a professional, you can try troubleshooting the issue yourself. Here are some tips:

  • Check for drafts or air leaks in the furnace room and seal them if necessary
  • Clean the pilot light orifice and surrounding area
  • Check the gas pressure and adjust it if necessary
  • Replace the thermocouple if it's faulty

If you're not comfortable with DIY troubleshooting or if the issue persists after trying these tips, it's best to call a professional. Our heating services team at Uinta Mountain Mechanical can help you fix the problem quickly and efficiently. We serve areas including Orem, Mapleton, and Spanish Fork.

Preventing Future Issues

To prevent future issues with your furnace pilot light, it's essential to schedule regular HVAC maintenance. This can help detect and resolve problems before they become major issues. Additionally, consider upgrading to a ductless system or improving your indoor air quality to reduce the strain on your furnace. For more tips on improving your home's comfort and efficiency, check out our blog posts on Is it Better to Leave Windows Open When the AC is On? and How Many Watts Does a Central Air Conditioner Use?.

If you're experiencing issues with your air conditioner, don't forget to check out our post on What to Do if Your Air Conditioner is Dripping Water. For more information on furnace pilot lights and troubleshooting tips, you can visit the U.S. Department of Energy website.

Don't let a faulty furnace pilot light leave you in the cold. Contact Uinta Mountain Mechanical today at (385) 274-0072 to schedule your HVAC installation or repair service. Our team of experts is ready to help you with all your heating and cooling needs in Wallsburg, Santaquin, and surrounding areas.

Need Professional 24 hour hvac Services?

Contact Uinta Mountain Mechanical today for expert 24 hour hvac services in Spanish Fork.

Call (385) 274-0072