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    jcapone2524's Avatar
    jcapone2524 Posts: 23, Reputation: 1
    New Member
     
    #1

    Jan 4, 2010, 06:50 PM
    Gas boiler
    Hey I have a problem in one of my buildings hope someone can help me figure out. I have four hot water boilers that all have low fire to the burners as soon as the burners light they never get to a high flame don't know what's the issue is it a possible gas valve problem please someone help me out thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Jan 4, 2010, 06:58 PM
    Usually large boilers will start at low fire and then when proved the will go to high fire if the controller feels it is necessary. There are hundreds of different control systems for boilers so anything more than this without very detailed info from you would just be a guessing game. Pictures of the controls and wiring along with a detailed wiring diagrams with control brands and exact model numbers listed would be a start.
    jcapone2524's Avatar
    jcapone2524 Posts: 23, Reputation: 1
    New Member
     
    #3

    Jan 4, 2010, 08:49 PM

    The only control are aquestat its not a big boiler and it starts slow and stays slow doesn't normally do that that's my concern
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #4

    Jan 5, 2010, 01:18 AM
    I cannot work in the blind. There could be many reasons from weak or defective gas valve to low gas pressure. Without all the info requested I cannot be of further assistance since I hate to play the guessing game. You will be better off calling for a on site service call so the repair person can see and test for problems with your unit.

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