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Carrier 58MSA12012120 Control Board
The control board is made to control the gas valve, the ignition igniter, all the various sensors and the blower all in one unit. Most systems will not run lest the main control board is in connected and operational. You must do some research when choosing a control board because of the wide variety of certain brands. The correct control board must have a matching part number consistent with both the brand and model of the unit in question.
Signs of a poorly performing primary control board
- When turned on, there is numbered code shown somewhere on the circuit board
- The power to the system has to be powered down and back up more often than not for it to run correctly
- System declines to start period
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