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LAARS MINI-Therm JVi

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Joe_Nichols4
Joe_Nichols4 Member Posts: 1
in Domestic Hot Water
Hey folks, question.
I have a super high pitch noise occurring when I turn my second floor zone on. The noise sounds like a very high pitch tuning fork and it's localized down by the boiler somewhere. I can't seem to put my finger on it. Has anyone come across this?
I also sometimes have a clanking noise when the boiler turns off. Maybe not the right flow to the boiler?
Stay Warm! Thank you for any insight.
-Joe

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,534
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    @Joe_Nichols4

    Is your system zoned with zone valves or circulators? I would guess it's the second floor circulator if you have one
    kcopp
  • Zman
    Zman Member Posts: 7,569
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    Copper fin boilers like yours are very sensitive to low flow conditions.
    How is yours piped? Can you post a picture? Is this a new problem?
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • hot_rod
    hot_rod Member Posts: 22,157
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    A new problem, or has it been going on for awhile. Another issue with copper tube is they can scale up, so when they turn off them make a peculation noise. It may need to be de-lime. When they fire up they can squeal, moan, hammer...
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream

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