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Problems with gas valve??

ysh
ysh Member Posts: 3
in THE MAIN WALL

Approximately once every 2 weeks my boiler flames making loud whining sound and flames appear larger than usual. Could it be gas valve putting out more gas than needed?

If not, what could be the issue?

Here is the picture of the noisy flame. You can see flame inside the tube.

1.jpg

And this is normal flame

2.jpg

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 24,600

    More likely the regulator than the gas valve itself. You really need to have someone check the gas pressures coming into the house and before and after the regulator and at the gas valve to make sure they are correct.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • JUGHNE
    JUGHNE Member Posts: 11,262

    You can see fire inside the burner tubes in the first pictures.

    Check pressure and clean burners, especially gas jets.

    Larry Weingartenmattmia2
  • mattmia2
    mattmia2 Member Posts: 10,783

    also make sure the burners aren't clogged with any debris like a spider web and aren't disintegrating. After cleaning the burners and checking the gas pressures, a combustion analysis would be a great idea.

    Also watch the burners when the blower comes on, they shouldn't change or move when that happens, if it does the hx is compromised.

  • HVACNUT
    HVACNUT Member Posts: 6,242

    Huh, so that's what they call a fire tube boiler. Cool.

    delcrossv
  • ysh
    ysh Member Posts: 3

    Here is the video

    https://youtu.be/nZ-juIxmeEA?si=fV_klV9zgT4q3XDl%20

  • Jamie Hall
    Jamie Hall Member Posts: 24,600

    gas pressure is off.

    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • ysh
    ysh Member Posts: 3
    https://forum.heatinghelp.com/discussion/comment/1819580#Comment_1819580

    are you saying there is not enough gas pressure? it happens really infrequently. is the gas valve a problem?

  • delcrossv
    delcrossv Member Posts: 1,261
    edited November 12

    More likely the regulator. But check both.

    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
    ysh

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