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International Comfort Products T8MPN100F14A1 Ignition Control Board
The main ignition control board keeps an eye on gas flow, the ignition timing and all the flame sensing devices. It has been a very important device that, over the years, has merged to become a standard part of the main board in order to have better control over the system.
Warnings to watch for in a bad main ignition board
- Any other device within the furnace is looked at and turns out to be a-OK
- Initial ignition sequence fails to commence when called upon
- Initial communication from the home thermostat does not make it to the main control board
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