De Dietrich Ignition electrode + ionization electrode + gasket S54339

The De Dietrich S54339 set includes an ignition electrode, an ionization electrode, and a gasket. The ignition electrode generates the spark to light the fuel, while the ionization electrode proves the flame by passing a small rectified current through it. The gasket seals the mounting point against combustion gases. This set is designed for use in De Dietrich boilers, including models MC 115, M 40-S, C 310 / 610 ECO, MC 65 / MC 90, DOMOGAS DGXECO / DGXE AB 05.98, MCR ... MI, and C 230 ECO. It is resistant to soot.

Parts of this type are selected by physical dimensions such as length, bend angle, insulator diameter, and electrode gap, as well as by the mounting flange pattern and the burner series for which they were originally shaped. When replacing, match the electrode geometry to the burner head and set the correct gap according to the burner manufacturer's specification. The gasket should always be renewed to prevent leakage.

Common failure modes include erosion of the electrode tip, cracking of the ceramic insulator, soot deposits that bridge the gap, and a drift in gap distance that weakens ignition reliability. These components are consumables and should be inspected periodically and replaced when signs of wear or sooting appear.