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International Comfort Products N8MPN100J22A1 Ignition Control Board
The purpose of the ignition control board is that it may control the gas valve, the ignition ignitor as well as other safety devices. It is an important safety device that, over the years, has merged to become a standard part of the main board instead of a separate board.
Red flags of a bad main ignition board
- The on-signal from the primary thermostat never makes it to the main board
- Any other potential problem throughout the system is looked at and turns out to be acceptable
- The ignition cycle is unwilling to start even when the thermostat kicks it on
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