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Carrier FB4CNF030 Ignition Control Board
An ignition control board checks out the gas valve, the ignition ignitor and a few other devices. It has always been a vital circuit board that is usually a piece of the main circuit board for the sake of being more efficient.
Key indicators that my major ignition board needs replacing?
- The initial signal from the home thermostat does not turn up at the main control board
- The ignition system refuses to fire up when called upon
- Every other thing within the furnace checks out OK
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