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International Comfort Products H9MPD125L20C2 Ignition Control Board
The ignition control board is a safety device that manages the natural gas, the ignition sequence and the flame sensing circuits. The ignition control board was always an important safety feature that, over the years, has merged to become a vital part of the main control board instead of a separate board.
Cues of an unhealthy main ignition board
- Initial sequence is unwilling to begin when it is supposed to
- The on-signal from the thermostat never makes it to the main board
- Every other problem within the system is looked at and turns out to be good
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