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    barbsalex's Avatar
    barbsalex Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 4, 2007, 12:13 PM
    Rheem furnace
    My Rheem furnace is showing a diagnostic red flashing light, flashing 3 times.
    I cannot locate the manual on the furnace. Does anyone know what the 3 time flashing red light means?
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member
    		  
    #2

    Mar 4, 2007, 12:45 PM
    Model #? Most Rheems use a green diagnostic light. You can't find the codes on the schematic diagram?
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