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Carrier 48GP042090300 Ignition Control Board
The purpose of the ignition control board is that it checks out the natural gas, the igniter and all the flame sensing devices. It has always been a vital board that is usually a standard part of the main board for enhanced safety.
Warnings of a deteriorating major ignition board
- Initial communication from the thermostat never moves to the control board
- Initial ignition sequence declines to launch no matter what
- Any other device attached to the system is looked at and turns out to be okay
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