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

    Jan 23, 2014, 12:20 PM
    Carrier furnace codes
    Have a Carrier Model 58STA furnace with status code 33.
    It's about 8 years and the 1st row will ignite (usually) but not the 2nd & 3rd rows. If I fan them, they will ignite. Tried the basic stuff in the manual and it ran OK last night. Today tried to clean a bit better, back to the above. Replaced filter, checked all connections, blower wheel is not loose and it is not windy out today.
    E are however in the greater NW suburbs of Chicago, 0 degrees now and -5 last night, so not good timing. Any ideas how to isolate what's left; IE: switches, roll out switch or blower motor? Thanks in advance, Charlie
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Jan 23, 2014, 03:13 PM
    Pull the burners and clean out the orifices. Fanning tells you that you are not getting enough gas flow to ignite the tubes.
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