De Dietrich Ignition/ionization electrode S101764

De Dietrich Ignition/ionization electrode S101764 is a combined ignition and ionization electrode from De Dietrich, listed under SKU S101764. It is resistant to soot. This electrode is designed for use in De Dietrich boilers, including models M 40, C 310 / 610 ECO, C 230 ECO, C 210 ECO, DTG 220 ECONOX, DOMOGAS DGXE 14-47 up to 04.95, DTG 230, 200 / 1S, and DTG 1200V ECONOX. It serves dual roles: the ignition electrode produces a spark from high voltage, while the ionization electrode proves the flame by conducting a small rectified current.

Parts of this type are selected by physical geometry: overall length, bend angle, insulator diameter, spark gap, and mounting flange shape. They are designed for a specific burner series, so the profile and tip position relative to the burner head must match the original part. When replacing, compare the new electrode side by side with the removed part to confirm the bend and insulator length are identical. Check that the ceramic is intact and the gap is set to the burner manufacturer's specification.

Typical failure modes include an eroded tip that widens the spark gap and delays ignition, a cracked ceramic insulator that causes flashover, sooting that shorts the signal, or mechanical damage during servicing. When such failures occur, the burner may have delayed ignition, fail to ignite, or lose flame detection. Check the electrode for these issues during troubleshooting.