The image shows a White-Rodgers Intell-Ignition Control Board, which is commonly used in HVAC systems, particularly in furnaces. Here’s a detailed breakdown of what you’re looking at:
Key Identifiers:
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Brand: White-Rodgers
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Product Line: Intell-Ignition
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Visible Model Markings:
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Label marked DD-C (this may be the board revision code)
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IC chip labeled 50A65-843 or 50A65-476 (model number variants)
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Notable Components:
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Relays
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Transformer
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Fuse
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Terminal blocks (W, R, C, etc.)
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LED diagnostic lights (e.g., DS2)
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DIP switches (configuration settings)
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Possible Model:
This board closely resembles the White-Rodgers 50A65-843 or similar 50A65-series modules, used in gas furnace ignition and fan control.
Common Applications:
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Used in gas furnaces to manage the ignition process and safety checks
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Provides control for blower fan, inducer fan, hot surface ignitor, and gas valve
Compatible with:
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Residential or light commercial HVAC systems
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Brands using White-Rodgers OEM parts (like Emerson)





