Has the Electronic Ignition in Your Furnace Lost Its Spark?
Sunday October 26, 2008
Not all furnace pilot light ignition problems are the same, especially if you do not have a standing pilot in your furnace as I describe in How to Light a Gas Furnace Pilot. Most all modern furnaces use an electronic ignition system having either an intermittent pilot or hot surface ignition.
Modern electronic ignition systems are more reliable than the standing pilot systems of old, but just as your new car has an electronic brain, so do some of these furnaces. And that means you're somewhat limited as to what can be done "under the hood" when they don't work
But take a read of the tutorial Overview and Repair of the Electronic Ignition Furnace and you'll learn how they work, and what you can do when they don't.
Comments
I have replaced two igniters on a trane furnace ex 80 it is only eight years old. one on november 3, and another on november 20 I did not touch the hot surface igniter with my hands. What else could be the problem.