Elektroda De Dietrich 97957134

This De Dietrich electrode (article 336.946.003, manufacturer codes 97957134 and 336.946.003) belongs to the category of ionization and ignition electrodes. Parts of this type serve one of two functions in the burner system: they either deliver the high-voltage spark from the ignition transformer to light the fuel-air mixture, or they prove the flame by conducting a small rectified current through it. Both types sit directly in the flame zone and are considered consumable items that degrade over time. When selecting a replacement for such an electrode, the key parameters are the length and bend of the rod, the diameter and condition of the ceramic insulator, the electrode gap, and the shape of the mounting flange. These dimensions must match the original part because the electrode must position the tip correctly relative to the burner head or pilot burner. Typical failure modes include an eroded or rounded tip, cracked insulation from thermal shock, soot or carbon buildup that shorts the signal, and a drifting gap that lengthens ignition time or weakens the flame signal. For systems that use a pilot burner, the pilot carries a small permanent or intermittent flame that lights the main burner and maintains the flame proof signal; the electrode in that case is often combined with the pilot assembly. Always compare the physical shape and mounting arrangement of the replacement with the existing part before fitting. The electrode must be clean and the insulator free of cracks to ensure reliable ignition and flame detection.