De Dietrich 95332801 ignition electrode + cable

The De Dietrich 95332801 ignition electrode with cable is a spare part for burners and boilers that use spark ignition. This article includes the electrode and its connecting cable, which links the electrode to the ignition transformer. Parts of this type belong to the ignition and flame supervision system: the ignition electrode delivers the spark that lights the fuel, while a separate ionisation electrode (or sometimes the same electrode in a combined design) proves the flame by conducting a small rectified current through it. Both electrodes live in the flame zone and are consumable items that degrade over time. When selecting a replacement ignition electrode, a heating engineer must match the original in terms of electrode length and bend, insulator diameter, spark gap, mounting flange pattern, and the specific burner series for which the electrode was shaped. Typical failure modes include an eroded or burnt tip, a cracked ceramic insulator, sooting that shorts the spark, and a drifting gap that lengthens the ignition time. A pilot burner – if present – carries a small permanent or intermittent flame that lights the main burner and holds the flame signal, and its electrode is similarly subject to wear. The ignition electrode works with the ignition transformer and the burner control. During the start sequence, the control energises the transformer, which produces a high-voltage spark at the electrode gap. The spark must be present when the gas valve opens. If the flame is not detected within the safety time, the control locks out. Regular inspection of the electrode condition and gap is recommended during servicing, as a weak or misaligned spark is a common cause of ignition failure.