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Carrier 48HJD008 Control Board
Heating and cooling systems will not even activate without the board configured and seated properly. The control board is created to direct the gas valve, the igniter, all the sensors and the blower all at once. The correct control board must have a matching part number consistent with both the brand and model of air handler system you have. Be absolutely sure while selecting a replacement because of the wide variety of brands, models and types of systems.
Key clues of a declining control board
- The control board has to be powered down and back up quite a lot for the furnace or AC to kick on
- AC unit or heating unit is unwilling to start well
- When turned on, there is a flashing error code displayed on the control board
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