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Lennox 21J99 Control Board 319825 402 The HS3GH24A24 delivers reliable magnetic The HS3GH24A24 delivers reliable magnetic actuation for compatible GC Valves solenoid valves Replacing a brittle or scorched harness with this factory authorized assembly restores original equipment performance and ensures that all integrated furnace control (IFC) logic functions operate according to the manufacturer’s engineered specifications
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