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Carrier 48XZ060090300 Ignition Control Board
An ignition control board checks the gas valve, the ignition sequence and a few other devices. It has been a very important safety feature that is usually a piece of the main circuit board instead of its own individual board.
Subtle cues of a deteriorating ignition board
- The ignition system declines to fire up no matter what
- The initial signal from the primary thermostat never turns up at the main control board
- Everything else connected to the system checked out to be OK
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