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Paragon W18 Control Board
The control board is designed to control the gas valve, the ignition igniter, all the various sensors and the blower all in one unit. Your air handler will be unable to run lest the circuit board is in connected and operational. The brand of board you choose should have part numbers that match the brand and the model of the unit you have installed. Be very careful while searching to pick up a replacement control board due to the vast differences in models within certain brands.
Simple indications of an ailing main circuit board
- There seems to be some sort of code indicated directly somewhere on the board
- Your system cannot initialize whatsoever
- The power to the system has to be powered down and back up frequently in order to operate
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