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Carrier 48XPN048090300 Ignition Control Board
The ignition control board is a safety device that checks out the gas valve, the igniter and some other sensors. It has always been a vital circuit board that some companies have moved to be a standard part of the main board for enhanced safety.
Major warnings the ignition board has little life left
- Initial sequence is unwilling to begin at all
- Any other problem throughout the system checked out to be fine
- The initial signal from the thermostat does not turn up at the main control board
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