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Goodman GCVC91155DXAB Control Board
It is impossible for your furnace or air handler to even run without the main control board in its proper place and configured for your unit. The control board is constructed to control the gas valve, the igniter, all the various sensors as well as the blower all at once. The chosen circuit board is supposed to have a part number that matches both the brand and specific model of the system you have installed. You must be sure when choosing a control board due to differences in models within certain brands.
Key clues of a poorly working primary control board
- Power to the control board has to be turned off and back on quite a lot for it to kick in
- There is some sort of code shown directly on the board
- Air conditioner or furnace is not able to operate well
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