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International Comfort Products H9MPD125L20A1 Ignition Control Board
The main reason to have an ignition control board is that it oversees the gas valve, the ignition sequence and the flame sensing circuits. The ignition control board was always an important safety feature that, over the years, has merged to become a vital part of the main control board for the sake of being more efficient.
Major clues the chief ignition control board will need to be replaced
- Communication from the main thermostat never does reach the main board
- Any other potential problem in the heating and cooling system is looked at and turns out to be just fine
- Ignition cycle refuses to kick in then the thermostat send a signal
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