Fenwal 35-615908-223-24V Dsi,W/Blower, Armstrong | PartsHnC

The Fenwal 35-615908-223 is a replacement part for Armstrong furnaces. It's a 24-volt Direct Spark Ignition (DSI) furnace control board that comes with a built-in blower motor driver. This component acts as the core management and execution system for both ignition and airflow within the furnace. When your thermostat signals a heating demand, this control board takes charge. It sends signals to the furnace's gas valve and igniter, initiating the combustion process. Simultaneously, it activates the blower motor, circulating warm air throughout your home. 

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