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Carrier 24ABR336A0031010 Ignition Control Board
The main reason to have an ignition control board is that it may control gas flow, the ignition timing and all the flame sensing devices. It is an important electronic safety board that is now usually a piece of the main circuit board instead of a separate board.
General indicators that your the major ignition board is on its last leg
- Signal from main thermostat never moves to the main board
- Initial sequence declines to kick in when it is supposed to
- Everything else connected to the system is inspected and turns out to be in good condition
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