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

    Jan 7, 2014, 06:47 PM
    Rheem classic 90 plus troubleshooting codes
    Rheem classic 90 plus flashes code '57'. Your thoughts?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Jan 7, 2014, 07:08 PM
    Google "Rheem code 57". Gives you insight and how to test. It is in the pressure sensor circuit.
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