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Lennox XP16-048 Ignition Control Board
Another safety feature is the ignition control board, which keeps an eye on gas intake, the ignition ignitor and the flame sensing circuits. The ignition control board was always an important circuit board that, over the years, has merged to become a part of the main control board for enhanced safety.
Key signs of an inadequate Lennox ignition control board
- The on-signal from the thermostat does not get to the main board
- The primary ignition sequence does not launch then the thermostat send a signal
- Every other potential issue in the system is looked at and turns out to be okay
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