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Carrier 50XL-A42 Ignition Control Board
An ignition control board oversees gas intake, the ignition sequence and some more sensing equipment. It has been a very important electronic circuit board that is now usually a part of the main control board instead of its own individual board.
Simple indications of a defective ignition control board
- Any other device connected to the system is explored and ends up being all right
- The initial signal from the remote thermostat does not make it to the Carrier control board
- Ignition cycle does not commence even when the thermostat kicks it on
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