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Carrier 30HH Ignition Control Board
An ignition control board controls gas intake, the ignition timing and the flame sensing circuits. It has always been a vital electronic circuit board that is now usually a standard part of the main board instead of a separate board.
Easy warnings the chief ignition control board will not live much longer
- Ignition cycle will not kick in when it receives a proper signal
- Signal from primary thermostat does not reach the control board
- Any other potential problem in the heating and cooling system checks out all right
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