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SPT WA-1240H Ignition Control Board
The purpose of the ignition control board is that it may control the gas valve, the ignition timing and the flame sensing circuits. It has always been a vital device that is now usually a part of the main control board in order to have better control over the system.
Major indications the major ignition board will eventually need to be replaced
- The primary ignition sequence declines to launch then the thermostat send a signal
- Every other potential issue connected to the system is explored and ends up being a-OK
- Initial communication from the remote thermostat never makes it to the SPT control board
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