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Carrier FNCCAB Control Board
The Carrier FNCCAB control board is constructed to command everything including the gas valve, the igniter, all the sensors as well as the blower all together. Your furnace or AC will not operate whatsoever without the main control board in place and connected. It is imperative that you select wisely when you choose a control board due to so many small differences in heating and cooling systems. The selected board should have a replacement part number that matches both the make and model of the unit you have installed.
Major symptoms your Carrier control board will eventually need to be replaced
- Heat or AC unit declines to start whatsoever
- There may be some sort of error code showing up somewhere on the board
- The board has to be turned off and back on often for it to work
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