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Payne PH3ZNA036000AA Ignition Control Board
Another safety feature is the ignition control board, which has control over the gas valve, the ignition sequence and all the flame sensing devices. The ignition control board was always an important electronic circuit board that has now become a standard part of the main board for safety reasons.
Main clues the major ignition board is failing
- Everything else in the heating and cooling system checks out in good health
- The main ignition cycle is unwilling to begin when it receives a proper signal
- Initial communication from the main thermostat never turns up at the main control board
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