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International Comfort Products T8MPN125J20B1 Ignition Control Board
The purpose of the ignition control board is that it keeps an eye on the gas valve, the ignition ignitor and other safety devices built into the system. It has always been a vital safety feature that some manufacturers have decided to blend to be a piece of the main circuit board in order to have better control over the system.
Major clues the major ignition board will need to be replaced
- HVAC ignition system can not begin at all
- Everything else in the system is explored and ends up being in good health
- Initial communication from the main thermostat never makes contact with the main control board
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