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International Comfort Products C8MPN100F14A1 Ignition Control Board
The main ignition control board has control over the gas valve, the ignition sequence and a few other devices. It has always been a vital circuit board that has now become a part of the main control board instead of its own individual board.
Subtle hints the major ignition board needs replacing ASAP
- The initial signal from the main thermostat does not turn up at the main board
- Ignition system is unwilling to commence when it is supposed to
- Every other problem in the HVAC system is inspected and seems to be OK
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