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Lennox G40UH-60D-135 Ignition Control Board
Another safety feature is the ignition control board, which oversees the gas valve, the ignition timing and a few other devices. The ignition control board was always an important circuit board that some manufacturers have decided to blend to be a piece of the main circuit board for enhanced safety.
Easy warnings of a weakening chief ignition control board
- The ignition cycle fails to activate even when called upon
- Communication from the primary thermostat does not show up at the main board
- Every other device attached to the system is inspected and turns out to be okay
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