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    markhavel's Avatar
    markhavel Posts: 1, Reputation: 1
    New Member

    Sep 18, 2011, 10:56 AM
    I have a Carrier Weathermaker 8000. Furnace cycles but no flame.
    I have a carrier weathermaker 8000.Furnace cycles but will not flame.I replaced glow coil and cleaned flame senser.The pressure switch is in open position.Any ideas?
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert

    Sep 18, 2011, 02:44 PM
    If pressure switch doesn't pull closed when draft inducer is running, then you have a plugged vent, plugged hose or port where pressure switch hose hooks to, bad pressure switch, faulty draft inducer, or possibly a plugged drain system if the unit is a 90+ unit.

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