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Carrier 25HNA660A0030020 Control Board
Most systems will not operate lest the main control board is installed. The control board is made to oversee the gas valve, the ignition igniter, most sensors as well as the blower all together. The brand of board you choose will have a part number that will match both the brand and model of the unit you have installed. You must be careful while selecting a replacement because of the many variances of models within certain brands.
Key symptoms of a worsening main board
- Power to the circuit board needs to be reset habitually for everything to run again
- The whole unit is not able to go correctly
- Could be an a type of code shown directly somewhere on the circuit board
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