De Dietrich Ignition transformer with ignition electrode S101619

The De Dietrich S101619 is an ignition transformer with an integrated ignition electrode, forming a single assembly. It is identified by the type designation D65 and is used in various De Dietrich boilers and burners, including models such as C 230 ECO, C 310 / 610 ECO, MCR ... MI, and others. The unit combines high-voltage generation and spark delivery, simplifying replacement where the transformer and electrode are mounted together. The assembly includes the electrode, ensuring the gap, ceramic insulator, and mounting flange are all part of the replaceable item.

When selecting a replacement of this kind, verify that the electrode length, bend, and insulator diameter match the burner head geometry. The transformer's electrical ratings, such as secondary voltage, output power, and duty cycle, must be compatible with the burner control and ignition circuit. Always check the physical mounting pattern and connector type before fitting.

Typical failure modes for such assemblies include carbon tracking on the transformer casing, cracked ceramic on the electrode, tip erosion, and a widened gap that delays or prevents sparking. When these occur, the burner may fail to ignite or exhibit intermittent ignition. Inspect the assembly for visible damage and ensure the electrode gap is within specification.