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Carrier 38BYG030 Ignition Control Board
The main reason to have an ignition control board is that it regulates the main gas intake valve, the ignition sequence and all the flame sensing devices. The ignition control board was always an important safety feature that is now usually a major component of the main board instead of its own individual board.
Major warnings of a weakening ignition control board
- Ignition cycle refuses to activate then the thermostat send a signal
- Any other potential problem in the heating and cooling system checks out fine
- The initial signal from the primary thermostat never makes it to the main control board
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