ACV Electrode 185-15-RH 537DZ045

The ACV 537DZ045 electrode, model 185-15-RH, is an OEM certified ignition and ionization electrode with a double ceramic insulator. It is designed to deliver a stronger ignition spark and withstand high temperatures, making it suitable for heavy-duty boiler systems. This electrode is compatible with ACV CA 250 Classic, CA 300 Compact, Prestige Box Mono 75 MK3, Prestige Box Mono 100 MK3, and HeatMaster 120 models.

When selecting a replacement electrode of this type, ensure it matches the original in length, bend, insulator diameter, spark gap, and mounting flange configuration. The electrode must fit the geometry of the burner head or pilot assembly. Before ordering, compare these dimensional aspects with the existing part. The ceramic insulator should be free of cracks, and the spark gap must be set to the specified distance for the burner.

Common failure modes include erosion of the metal tip, cracks in the ceramic insulation, soot buildup that bridges the gap, and a drifting spark gap. These issues can lead to delayed ignition, nuisance lockouts, or misfiring. Regular inspection is recommended, and if the electrode shows signs of wear, it should be replaced during burner servicing.