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Lennox Elite Series Ignition Control Board
The ignition control board is a safety device that manages gas intake, the ignition timing and some more sensing equipment. The ignition control board was always an important safety feature that has now become a standard part of the main board for enhanced safety.
Clues to watch for in a failing ignition board
- Ignition cycle fails to kick in even when called upon
- The on-signal from the home thermostat gets lost before it makes it to the main control board
- Every other thing within the furnace is inspected and seems to be acceptable
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