De Dietrich 97955210 ignition electrodes

De Dietrich 97955210 ignition electrodes are components used in gas-fired burners to generate the spark that lights the fuel-air mixture. These electrodes belong to the category of ionization and ignition electrodes. Ignition electrodes work together with an ignition transformer; when the burner control calls for heat, the transformer sends a high-voltage pulse to the electrode, producing a spark at the tip. The electrode is positioned in the flame zone, often near a pilot burner or directly in the main burner stream. Parts of this type are consumable because the tip erodes over time, the ceramic insulator can crack from thermal shock, or soot buildup can bridge the gap. When selecting a replacement, the key parameters are the electrode length and bend, the diameter of the ceramic insulator, the spark gap setting, and the shape of the mounting flange. Each burner series is designed for a specific electrode geometry, so the replacement must match the original part. A drifting gap—often from tip erosion or bending—lengthens ignition time and may cause nuisance lockouts. Before installing, inspect the new electrode for cracks and verify that the gap matches the burner manufacturer’s specification.