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Carrier 38MFQ012 Control Board
The control board is created to command the gas valve, the igniter, all the sensors as well as the blower all together. Your furnace or AC will not operate whatsoever lest the circuit board is installed as it should be according to the manufacturer. You must do some research while selecting a replacement because of the diversity of models and types. The brand of board you choose will have to match part numbers the brand and the model of HVAC system.
Easy warnings of an ineffective control board
- System has numbered code being displayed somewhere on the circuit board
- The power to the system has to be turned off and back on repeatedly for it to run
- AC or heating system is unable to start properly
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