Simplified Installation: Standard mounting footprint and terminal connections allow for fast field replacement

Built for high-capacity applications

Direct OEM Compatibility: Verified fit for York S1-02531813000

Common indicators include a humming condenser fan motor that won't start

To prevent slippage

Lochinvar & A.O. Smith 100208621 Harness Simplified Installation: Standard mounting footprintThe Lochinvar & A. O. Smith 100208621 Spark Electrode Harness is a critical OEM replacement component designed for high efficiency boiler ignition systems. Also identified by the industry cross reference WRE2210K, this ignition harness provides a high voltage path from the DSI control module to the spark electrode, facilitating reliable combustion across various condensing boiler and water heater models, including the Lochinvar KB150, 151, and 210 211