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Samsung AVMWC040CA0 Control Board
The control board is created to operate the gas valve, the igniter, the flame sensor as well as the air circulator all together. Your furnace or AC will not run at all unless this board is hooked up and is correctly configured. Be absolutely sure when you decide to replace your control board due to differences in models within certain brands. The proper control board will need to pair with the part number from the brand and the model of the system you have installed.
Major warnings of a bad main board
- Could be an some sort of code instantly appearing somewhere on the board
- Your system declines to start whatsoever
- The power to the system has to be turned off and back on many times a day for the furnace or AC to kick on
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