Turn off the Trane X360’s power and gas line. Open the furnace’s maintenance door.
Locate the burner in the bottom of the furnace, where the gas lines end. Vacuum the area around the burner. Vacuum the burner itself with the brush attachment to remove any dust and dirt from the burner.
Blow compressed air into all the holes along the length of the burner. This clears the burner lines of any clogs or debris.
Shut the maintenance door and turn the power and gas back on.