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Lennox 13ACD-018 Ignition Control Board
The main ignition control board keeps an eye on the natural gas, the ignition timing as well as other safety devices. The ignition control board was always an important board that is usually a major component of the main board instead of a separate board.
Major indications the chief ignition control board is in need of replacing
- Communication from the main thermostat never moves to the Lennox control board
- Initial sequence does not fire up even though it is supposed to
- Any other device throughout the system checks out okay
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