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

    Oct 24, 2010, 06:33 AM
    Blower runs but no heat
    Hello my friend has a goodman gdh8070 furnace with a 4 flashing lights on the board (open hight limit) i put a wire between the purpure wires to close the circuit, blower run, combustion fan run but not heat i inspect every part but they are good when i conetc the switch back 6 flashing lights apear on the board what could be the problem i have some ac and electrical knowledge *** help us thanks omar
    Joshdta's Avatar
    Joshdta Posts: 2,549, Reputation: 45
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    #2

    Oct 24, 2010, 06:35 AM

    4 is limit, not sure what 6 would be. You woill have to check the back of the furnace door, usually 6 is a presuure switch never opened code. Did you jumper all the saftys or just the high limit??
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