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Nordyne MS3BA042KA Control Board
The HVAC system will be unable to run unless this board is in place and connected. The Nordyne MS3BA042KA control board is made to direct the gas valve, the ignition igniter, most sensors and the blower all together. You must be sure when choosing a control board due to the many differences between particular brands and their models. The proper control board must be compatible with both the make and model of furnace or air handler you have.
Red flags of an ailing primary control board
- There may be some sort of error code indicated somewhere on the circuit board
- The control board has to be turned off and back on quite frequently in order to continue running
- Heat or AC unit is unable to operate well
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