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    somisborn's Avatar
    somisborn Posts: 1, Reputation: 1
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    #1

    Oct 18, 2011, 06:29 PM
    Bryant furnace code 45 355bav?
    Tried changing the board, still flashing code 45. Will changing the gas valve help ?
    JonesHVAC's Avatar
    JonesHVAC Posts: 173, Reputation: 12
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    #2

    Oct 18, 2011, 08:19 PM
    This is a control circuitry lockout code that means one of the following three: Flame Sensor failure, Gas Valve relay stuck open, and software check error. Turn the thermostat to off --> cut power to furnace for 2 minutes and then turn back on. Have your spouse turn the thermostat back on and observe the sequence of operation before the fault re-appears so you can post it back to us. Thank you.
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