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International Comfort Products H8MPN050B12B1 Ignition Control Board
The purpose of the ignition control board is that it governs the natural gas, the ignition ignitor and some other sensors. The ignition control board was always an important safety device that is now usually a vital part of the main control board for enhanced safety.
Major signs of a deteriorating main ignition board
- Any other device within the furnace checks out a-OK
- The on-signal from the primary thermostat does not get to the control board
- Ignition sequence is unwilling to fire up even when the thermostat kicks it on
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