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

    Oct 15, 2009, 03:43 PM
    Weil-mclain ultra 155
    I have power to my boiler because the fan is running, but no power to the electronics. So no firing, no sensing and no heat. Are there fuses in there that could be blown? Unit is 2 years old.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 15, 2009, 03:52 PM
    Here is your manual and I believe there are fuses in the control circuit BUT you need to find out what caused it to blow since just replacing the fuse might leed to further trouble.

    http://www.weil-mclain.com/downloads...ler_manual.pdf
    lostalways's Avatar
    lostalways Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Oct 22, 2010, 04:42 PM
    The boiler is running ,are getting domestic hot water , but the circulators for heat are not coming on
    lostalways's Avatar
    lostalways Posts: 2, Reputation: 1
    New Member
    		  
    #4

    Oct 22, 2010, 04:42 PM
    The boiler is running ,are getting domestic hot water , but the circulators for heat are not coming on
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