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rheem weather king help

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112brian
112brian Member Posts: 1
in Gas Heating
i have a rheem weather king gas with a 1012 925c board. it will only cycle on for a min. flame light is blinking or not on at all. changed the flame sensor. only trouble code is soft lockout(one flash). still same . where do i look next. burners look clear.

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  • Ironman
    Ironman Member Posts: 7,376
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    Grounds

    Check all your ground connections in the furnace and circuit all the way back to the service panel. The flame rectification circuit uses the ground wire all the way back to the panel to prove the flame. We're talking micro amperage so a poor ground path means no proving and no heat.



    If that is good, and the flame signal is good, then the board is bad.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
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