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Carrier FX4BNB060000AAAA Control Board
The entire heating and cooling system will not operate lest the circuit board is hooked up and is correctly configured. The control board is made to direct the gas valve, the igniter, all the various sensors and the blower all in one unit. Be absolutely sure upon picking a replacement board due to so many small differences in HVAC systems. The proper control board should be compatible with both the make and model of your heating and cooling system.
Important clues of a worsening main board
- Everything needs to be reset quite frequently in order to run
- System refuses to do anything whatsoever
- There seems to be some sort of error code shown directly on the circuit board
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