ACV Dual-ceramic electrode 215-10-LH 537DX028

The ACV Dual-ceramic electrode 215-10-LH (SKU 537DX028) is an ionization and ignition electrode with two ceramic insulators, designed to withstand high thermal stress. It is compatible with ACV CA 600 Classic, CA 800 Comfort, CA 1000 Twin, and HeatMaster 120 boilers. This electrode is resistant to soot, ensuring consistent performance in combustion environments. It serves to ignite the fuel-air mixture and/or prove flame presence via ionization current.

When selecting a replacement electrode of this type, critical parameters include overall length, rod bend, ceramic insulator diameter and material, electrode tip gap, and mounting flange configuration. These dimensions must match the burner's combustion head and flame zone position. Verify fit by comparing the installed part or consulting the burner's technical documentation. Ensure the ceramic is free of cracks and the electrode is correctly aligned with the burner ground and pilot flame if applicable.

Common failure modes include eroded or burnt-off tips, cracked ceramic from thermal cycling, sooting that can short the spark or ionization signal, and gradual deformation of the rod that changes the gap and affects ignition reliability. Symptoms may include difficulty igniting, intermittent flame loss, or no spark. Check for visible damage, soot buildup, and proper gap alignment.