| You have run all the tests and they all point to | | | | furnace before you attempt to remove the |
| your igniter being bad in your gas furnace. | | | | igniter. It runs on 110V power and will give you a |
| Your purge blower runs, the power comes on to | | | | good jolt if you touch it with power going to it. |
| the igniter, but you get no glow from that little | | | | Once you have located the igniter, you will need |
| wonder. This is how can it be changed? | | | | to find the screw or screws that hold the igniter |
| Changing the igniter on your gas furnace really is | | | | in place. Remove or in some cases just loosen |
| not all that hard. But it may require a bit of | | | | the screw and remove the igniter. Take careful |
| patience and some tools that can get into some | | | | note of the location and position of the old igniter |
| very tight quarters. Some furnace manufacturers | | | | so that you can reinstall the new one in the exact |
| have design their units to make this job very | | | | position as the old one. In most cases the wiring |
| easy. Some other engineers obviously have never | | | | will just be a Molex plug that you can just unplug |
| got away from their desk and picked up a screw | | | | the old igniter and then plug your new igniter back |
| driver. Hopefully you are lucky enough to have | | | | into it. |
| one of the easy ones. | | | | Carefully position the new igniter into the same |
| The higher the efficiency of your furnace the | | | | location and tighten the screw(s) that hold it in |
| harder this job will be. Usually the 90+ furnaces | | | | place. Plug the new igniter into the plug and |
| will have the burner compartment sealed. You will | | | | replace the covers on the burner compartment if |
| have to get the covers off of the burner | | | | there is one. |
| compartment to get to the igniter. On the | | | | Now you can turn the power back on to your |
| 80%er's the igniter will usually be somewhere on | | | | furnace and try for ignition. Hopefully you get the |
| the burner nearest the center of all the burners. | | | | glow and ultimately fire in from the burners. This |
| Make sure that you remove all power to your | | | | will give you heat and make everyone happy! |