How to Safely Use a Gas Furnace Ignitor

October 07, 2021

A gas furnace is an effective and often cost-efficient solution for your home-heating needs. However, a common issue encountered with these types of furnaces is problems with the gas furnace igniter. When your gas furnace igniter isn't working, it can't generate heat to keep your home warm during the colder parts of the year.

Common Gas Furnace Igniter Problems

There are many common reasons a gas furnace igniter can fail, including:

  • Damage to the Ignitor. One of the most common causes of igniter issues is damage to the part itself. Ignitors wear out over time, and many furnaces will outlast the usage life span of an igniter, requiring it to be replaced. A skilled HVAC technician will be able to tell if the igniter needs replacing, and they will be able to safely do so.
  • Issues with the Temperature Limit Switch. Gas furnaces have temperature-limit switches to keep you safe, and if your furnace runs too hot, the gas furnace igniter is switched off automatically. If the limit switch is damaged or malfunctioning, this can lead to it shutting off accidentally. Another cause could be clogged filters making your furnace run hot due to it being unable to regulate its heat.
  • Incorrect Installation. Sometimes issues can occur due to installation errors. A gas furnace igniter with the wrong specifications could have been installed, or the part itself could have been installed incorrectly, leading to it failing.

Always Trust a Professional

If your home’s gas furnace is having issues with its igniters or performance issues in general, you should always contact a professional. Repairing a gas furnace igniter requires specific skills and professional care that needs to be performed safely and effectively. At Aggressive Mechanical Contractors, we can help with any repair and maintenance needs you may have. Proudly serving residents of Neptune City and surrounding communities for more than 70 years, we are committed to your complete satisfaction. Contact us today to learn more.