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The board group is a central electronic control unit that manages the operation of your boiler or burner. It processes signals from sensors and controls ignition, flame monitoring, and safety functions. If your heating system is experiencing intermittent faults, error codes, or failure to start, a faulty board group may be the culprit. Replacing this component with a compatible unit can resolve many electronic issues and restore reliable performance. Always ensure the replacement matches your system's specifications for proper communication and safety.