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Buzzing box in hot press

  • 04-01-2019 9:14pm
    #1
    Purple Sheep
    Registered Users, Registered Users 2 Posts: 48 ✭


    At some point over Christmas, something in the hot press started buzzing. The noise is constant and vibrates loudly against the wall, which unfortunately is shared with a bedroom. Would anyone have an idea what's that box for and what I can do to fix the noise? It's quite hot and there's "auto" and "man" written on it though I couldn't really feel any button or switch. I gave it a gentle-but-firm shake tonight and the buzzing is back to the lower levels like at Christmas, but I'd like to be rid of it completely. I'm not sure if I can be more rough with it without damaging something? If that matters the immersion in there's never used, water is heated with gas boiler.


Comments

  • #2
    RebelButtMunch
    Registered Users, Registered Users 2 Posts: 2,390 ✭✭✭RebelButtMunch


    Purple Sheep wrote: »
    At some point over Christmas, something in the hot press started buzzing. The noise is constant and vibrates loudly against the wall, which unfortunately is shared with a bedroom. Would anyone have an idea what's that box for and what I can do to fix the noise? It's quite hot and there's "auto" and "man" written on it though I couldn't really feel any button or switch. I gave it a gentle-but-firm shake tonight and the buzzing is back to the lower levels like at Christmas, but I'd like to be rid of it completely. I'm not sure if I can be more rough with it without damaging something? If that matters the immersion in there's never used, water is heated with gas boiler.

    It looks like a motorised valve. Danfoss hpa2?

    Maybe it's on the way out


  • #3
    meercat
    Registered Users, Registered Users 2 Posts: 4,848 ✭✭✭meercat


    Purple Sheep wrote: »
    At some point over Christmas, something in the hot press started buzzing. The noise is constant and vibrates loudly against the wall, which unfortunately is shared with a bedroom. Would anyone have an idea what's that box for and what I can do to fix the noise? It's quite hot and there's "auto" and "man" written on it though I couldn't really feel any button or switch. I gave it a gentle-but-firm shake tonight and the buzzing is back to the lower levels like at Christmas, but I'd like to be rid of it completely. I'm not sure if I can be more rough with it without damaging something? If that matters the immersion in there's never used, water is heated with gas boiler.

    It’s a motorized valve for your central heating or hot water. Possibly coming to the end of its life. A plumber or electrician could replace it (or yourself if your handy)
    Rebelbuttmunch got there before me.


  • #4
    Lumen
    Registered Users, Registered Users 2 Posts: 31,234 ✭✭✭✭Lumen


    It appears to be a Danfoss HPA2 2 port valve actuator.

    Looks like a cheap enough part to replace. I have no idea how hard that is, I wouldn't touch it myself.


  • #5
    KERSPLAT!
    Closed Accounts Posts: 31,152 ✭✭✭✭KERSPLAT!


    Looks like a valve, probably needs to be replaced.


  • #6
    Purple Sheep
    Registered Users, Registered Users 2 Posts: 48 ✭Purple Sheep


    Great everyone, thanks for the help! I'm trying to figure things out by myself before just ringing for help but I think I'll call the plumber on Monday for that one. It's in a really awkward place. Glad I'll be able to explain a bit more than just "huh there's a noise??" at least ;) Cheers!


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