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humming

A hum is a sound made by producing a wordless tone with the mouth closed, forcing the sound to emerge from the nose. To hum is to produce such a sound, often with a melody. It is also associated with thoughtful absorption, 'hmm'.
A hum has a particular timbre (or sound quality), usually a monotone or with slightly varying tones. There are other similar sounds not produced by human singing that are also called hums, as the sound produced by machinery in operation, such as a microwave, or by an insect in flight. The hummingbird was named for the sound that bird makes in flight which sounds like a hum.

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  1. H

    Wb cdi30 ch humming

    Hi all, please help if you can I have had a new wb cdi30 fitted recently and every time the central heating comes on all the radiators and pipes hum, the sound is one of the water circulating around the system. This is getting very irritating especially when in bed trying to get to sleep! Does...
  2. R

    Water hammer causing humming in main cold feed pipe....Please help

    I have recently had a new Oso mains pressure tank installed.Since the installation i am getting a dreadful humming in the cold feed pipe when opening or closing taps or using toilets.It can be intermittent but normally happens a few times after using a tap.The Plumber who installed the new tank...
    • racdan
    • Thread
    • causing cold cold feed hammer help humming main noise valve valves washers water water hammer
    • Replies: 22
    • Forum: Plumbing Jobs | The Job-board
  3. GQuigley67

    Humming noise from Glowworm Flexicom

    went to see this boiler today, customer showed me it on heating and it made a humming noise when it was on, i serviced it then fired it up agian and it made this noise for a while then stopped, but when it was making the noise when i took the front case off it didnt make this noise though. Any...
  4. V

    Hot water cylinder in loft making constant humming noise

    Hello I have a hot water cylinder in the loft of my house, and a boiler in the kitchen. The cylinder makes a constant low humming noise, 24 hours day and night. (The central heating is currently off for the summer so it is only used for hot water). It is slightly annoying as it can be heard in...
    • vbakhshi
    • Thread
    • constant cylinder hot hot water hot water cylinder humming loft making noise normal plumber water
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  5. M

    Humming Valve

    I have a Siemens 3PMP-V22 Three Way Valve that has started humming loudly.. I suspect it's about to fail, but is this a whole new valve replacement, or just the top head ?
  6. J

    Loud humming noise from sink

    Hi, hope I'm posting in the right section and someone can help! The plumber has come to fix the dripping taps and now the kitchen sink has a loud humming noise coming from somewhere. The plumber has taken up a floor board to see if he can find a leaking pipe and no vibration anywhere. He...
  7. E

    Humming and swashling noises from pipes in airing cupboard!

    Hey, sorry no nothing about plumbing other than I've just had a new diverter valve fitted which is great, but I get a constant humming and swashling kind of sound from the pipes lnked to this. I tried turing the pump down which resolved the noises, but had to turn it back up as the radiators...
  8. E

    Loud humming noise from vokera boiler

    I am having problems with my boiler british gas home care have been out 4 time but the problem returns, about 5-10 minute of the heating coming on the boiler starts making a loud humming noise lasting for sometimes a few seconds to over 10 minutes, if I turn the thermostate down or recently I've...
  9. J

    humming rad

    just completed an 8 radiator system running off a 37cdi combi everything fine but bathroom rad 600x700 humming coming from rad like a blow heater its running off 22mm to 8mm with danfros trvs & lockshield if you shut the lockshield off noise gon even slightly open it humming back checked below...
    • jambo
    • Thread
    • 10mm 22mm air copper flow head humming noise noisy pipe pipe size pipes plumbing problem pump radiator sealed system trv wall water work
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  10. N

    potterton suprima HE > humming noise

    hello clever plumbing peeps! if when the heating and hot water is turned off we have a VERY audible humming sound coming from roughly where the pump is located, would you recommend we get someone in to check it over/replace the pump asap? ty Nay :D
    • nayhum
    • Thread
    • boiler central heating system flow hot hot water humming noise plumber plumbing potterton potterton suprima pump suprima system water
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  11. K

    not IDEAL humming droning system

    Hi Everyone, I have a house in UK with an IDEAL boiler that had heat exchanger replaced under fixed price repair by Warmsure. The exchanger ceramic plates had broken (Warmsure/IDEAL plumber accidently let slip that this was a design fault - no clips were fitted to hold plates in place) - hole...
    • kiwi_to_go
    • Thread
    • boiler cable central heating system corgi difficult diy droning header header tank hot humming ideal noise plumber price problem pump system tank valve
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  12. L

    Low humming sound

    Our central heating boiler is situated on a short, non load bearing spur wall within the downstairs bathroom extension. This spur leads from an outside wall. There are no other rooms above or next to this wall Until recently no problem, but now we have a humming / vibrating sound throughout the...
    • longsword
    • Thread
    • bathroom boiler central central heating system fan gas humming new boiler problem pump radiators sound valve wall
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  13. D

    humming noise to toilet cistern

    humming noise from rising main when toilet is flushed and cistern is filling.worcester 30 cdi is the combi boiler that serves the heating.15 mm pipe work to cistern.it quietens a bit when you run cold tap.
    • Dsgas
    • Thread
    • appliance boiler central heating system cistern cold combi combi boiler float valve hammer humming noise oil pipe pipes pressure problem screw tap toilet valve washer water water mains worcester work
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
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