Replacing the Ignitor in a Goodman GMNT Furnace

The burners in your Goodman home furnace are lit with the help of an ignitor. This is a small electrical component located inside the furnace. If the ignitor in your furnace is faulty, the whole unit will be rendered useless. There are safeguards in place that shut off the gas line when the ignitor isn't working, but you should still replace a bad ignitor as quickly as possible.

Phillips screwdriver

Instructions

- 1
  Turn off your furnace via the main "Power" switch connected to the unit.
- 2
  Remove the screws holding the front access door in place, and remove the access door. You will now have access to the internal components of the furnace.
- 3
  Locate the ignitor inside your furnace. It is a thin piece of ceramic with a wiring harness plugged into it.
- 4
  Unplug the wiring harness from the ignitor.
- 5
  Remove the mounting screws on the ignitor.
- 6
  Remove the ignitor, and fit a new one in its place.
- 7
  Replace the mounting screws, and plug the wiring harness into the port on the ignitor.
- 8
  Replace the front panel of the furnace.

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