De Dietrich 97948245 ignition electrodes

This De Dietrich ignition electrode provides the spark necessary to ignite the fuel-air mixture in a burner. It is a component of the ignition circuit, working together with the ignition transformer and the burner control. The electrode tip is positioned in the flame zone and is subject to thermal and electrical stress. Parts of this type are consumable and should be inspected periodically. When selecting a replacement ignition electrode, the key parameters are the electrode length, the bend angle, the insulator diameter, the spark gap, and the shape of the mounting flange. These dimensions are specific to the burner series for which the electrode was formed. Common failure signs include a worn or eroded tip, cracks in the ceramic insulator, a sooted surface, or a gap that has drifted out of specification, which prolongs ignition time. A pilot burner, where present, carries a small flame that lights the main burner and provides the flame signal; its electrode must also be checked. Replacing an ignition electrode requires access to the burner head and careful alignment to maintain the correct gap relative to the burner surface. Always verify the condition of the ignition transformer and the wiring before fitting the new part. If the burner fails to light after replacement, confirm that the electrode position matches the manufacturer’s setting and that the gap is not too wide.