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International Comfort Products GPCM18K040F Ignition Control Board
The ignition control board is a safety device that keeps an eye on the gas valve, the ignition sequence and the flame sensing circuits. It is an important circuit board that, over the years, has merged to become a piece of the main circuit board instead of a separate board.
Easy warnings of an unhealthy main ignition board
- Everything else attached to the system checks out in good health
- Initial communication from the main thermostat does not make it to the International Comfort Products control board
- Ignition sequence is unwilling to start then the thermostat send a signal
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