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International Comfort Products PGF036S100F Ignition Control Board
The purpose of the ignition control board is that it checks the natural gas, the ignition timing and the flame sensing circuits. It is an important electronic safety board that is now usually a piece of the main circuit board for the sake of being more efficient.
Red flags your main ignition board will have to be replaced
- Any other problem within the furnace checks out okay
- The electrical signal from the thermostat does not turn up at the main control board
- Ignition cycle fails to commence at all
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