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International Comfort Products GDJ075M16C2 Ignition Control Board
Another safety feature is the ignition control board, which keeps an eye on gas flow, the ignition timing and the flame sensing circuits. The ignition control board was always an important safety device that some companies have moved to be a piece of the main circuit board instead of having two separate boards.
Some clues of an ailing main ignition board
- Every other problem connected to the system is looked at and turns out to be just fine
- Signal from thermostat does not show up at the main control board
- Initial sequence will not launch no matter what
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