Lamborghini Control (ionization) electrode 3981A260

The Lamborghini Control (ionization) electrode 3981A260 is a spare part for Lamborghini burners, with a length of 260 mm. It is resistant to combustion products and soot. This electrode is used on Lamborghini EM 26, EM 35, EM 26/2, and EM 40/2 burner models. It is an ionization electrode that proves the presence of flame by conducting a small rectified current, which the burner control reads as a flame signal.

When selecting a replacement electrode of this type, critical parameters include rod length and bend, diameter and material of the ceramic insulator, electrode gap, and design of the mounting flange. These dimensions are specific to the burner series and combustion head geometry. Before ordering, compare these specifications with the original part. Installation involves setting the electrode gap to the burner manufacturer's specification and ensuring the mounting flange fits correctly.

Typical failure modes include erosion of the spark tip, cracking of the ceramic from thermal shock, sooting that shorts the electrode to ground, and a drifting gap that lengthens ignition time or weakens the flame signal. When these occur, the burner may fail to ignite, have delayed ignition, or lose flame signal, causing shutdown. Inspect the electrode for damage and clean any soot or deposits from the insulator, but avoid damaging the ceramic.