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International Comfort Products T8MPT100J20B1 Ignition Control Board
The main reason to have an ignition control board is that it keeps an eye on the gas valve, the ignition sequence and a few other devices. It has always been a vital circuit board that some companies have moved to be a piece of the main circuit board instead of a separate board.
Indications the chief ignition control board has very little life left
- Any other problem attached to the system is looked at and turns out to be fine
- Ignition system declines to initiate even though it is supposed to
- The on-signal from the home thermostat never does reach the control board
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