ACV Ignition and ionisation electrode 537DZ033

The ACV Ignition and ionisation electrode 537DZ033 is a replacement part for ACV Prestige and Compact boiler models. It serves dual functions: delivering the spark to ignite the fuel-air mixture and proving flame presence via ionisation current. This electrode is designed for use in Prestige MK1-2, Prestige 75 MK2, Prestige 100 MK4, Compact 24, Compact 28, and Kompakt HRE 32 models. It is a consumable component exposed to high temperatures and combustion by-products.

When selecting a replacement electrode of this type, verify the electrode length, bend, insulator diameter, spark gap, and mounting flange shape against the original part. Ensure the electrode is compatible with the specific burner series. Before installation, check the ceramic insulator for cracks and measure the spark gap to the manufacturer's specification. The mounting flange must seat correctly, and the electrode tip must be positioned accurately relative to the burner head or pilot outlet.

Typical failure modes include worn or eroded tips, cracking of the ceramic insulator, soot build-up that insulates the electrode, and a deformed gap that extends ignition time. Symptoms may include difficulty igniting, delayed ignition, or burner shutdown due to flame detection failure. Inspect the electrode for these issues and replace if necessary.