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

    Dec 1, 2009, 09:17 PM
    Carrier furnace blower stays on
    I have a 1980 carrier gas furnace - I changed the filter and immediately smelled something burning - looked inside and found it was the transformer- at this point the fan stayed on with no heat- replaced the circuit board and transformer - now I turn thermostat up and the pilot lights, heating element lights, fan turns on and within a minute or so no pilot or heating element. It will continue to cycle like this. When I disconnect the lower fan limit(not sure of name) that plugs into plenum the fan turns on
    Please help - I'm at my wits end
    Thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 1, 2009, 09:35 PM
    EXACT model number of unit.
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