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    jarivera4's Avatar
    jarivera4 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jan 21, 2009, 11:47 AM
    Rheem Gas Furnace Fan limit switch settings Model # 3214-100fb
    What are the proper settings for this particular model. The fan stays on way to long after the heat/fire shut down, which then causes the house to cool down quickly.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 21, 2009, 01:39 PM
    There are no etched in stone settings since every house and duct system are different. If you have one of these typs of control raise the fan cut off setting. Hold the main round dial while you move the pointer up the temp scale just a bit at a time until satisfied. This will take a few cycles of the furnace to get exactly correct. You cannot rush the adjustment.
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