ACV Electrodes assy BM102-152n 537D8125

The ACV Electrodes assy BM102-152n (SKU 537D8125) is an electrode assembly that combines ignition and ionization (flame detection) functions in one pre-shaped unit. It is designed for use in specific ACV boiler models, including CA 800 Classic, CA 800 Comfort, CA 1000 Twin, and HeatMaster 120. The assembly is resistant to soot, ensuring consistent performance in combustion environments. It is a consumable part that must be positioned accurately in the flame zone for proper ignition and flame sensing.

When selecting a replacement electrode assembly of this type, key parameters to match include overall length, bend angle of the tips, diameter of the ceramic insulator, electrode gap, and mounting flange pattern. These dimensions must correspond to the combustion head of the specific burner. Before ordering, measure or compare these parameters against the existing assembly or the manufacturer's specifications for the burner model.

Failure of this kind of electrode assembly can occur due to ceramic cracking from thermal shock or mechanical stress, erosion of metal tips, or soot deposits shifting the electrode gap. Symptoms include intermittent lockouts, delayed ignition, or failure to light. A drifting gap or hairline crack in the insulator often causes these issues. Regular inspection and replacement at recommended service intervals help maintain flame signal and safe operation.