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sounds

In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid.
In human physiology and psychology, sound is the reception of such waves and their perception by the brain. Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimetres (0.67 in). Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges.

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  1. M

    Brand new Alpha Boiler. Got hot water but no heating.

    Boiler commissioned last Thursday and all good till pressure started dropping & got an error for low pressure. Filled up & having read on here that likely reason was a leak, turned central heating off and closed flow & return to see if pressure stayed put. It did. Located my leak and put that...
    • malthouse
    • Thread
    • alpha boiler brand brand new central heating system hot hot water no heating oil pressure should sounds water without
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  2. C

    Help needed with unidentified noise

    Hello, I have been having this problem for a while and my friends think that it may be linked to my pipes. It usually happens at night and it is a sort of scratching noise. It sounds like a guiro instrument (from what I have found on youtube) - like wood scraping over wood. There are usually 4...
  3. P

    Plumbing agencies

    I have been asked if I would like to register with a couple of Plumbing Agencies, TradeTek and Able and I was wondering if anyone has done any work for them?
  4. T

    Help with downstairs wc connection

    Hi all , can anybody help with this ? We have an extention on th eside of the house which is built on a raft and we want to put a utility room in th emiddle of the extention. The only way I can see of running the soil pipe is along the top of the slab and then out the wall and in to the stack at...
  5. M

    trianco oil fired external (with cylinder in attic) gravity fed system

    i am on a job where the radiators down stairs are heating good but the 3 upstairs rads have no heat whatsoever, the boiler is outside at back door of house and is working perfectly,pump sounds great and set at 3, radiators are full of water upstairs yet no heat apart from at one which has tiny...
    • markmonty
    • Thread
    • attic cylinder external fed fired gravity gravity fed system oil other radiators sounds suggestions system trianco upstairs
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  6. A

    Noisy Boiler (running water sound)

    Hi, our boiler has always made a vibrating noise when first switched on (this has got louder recently). We now also have a problem of a really loud running water sound coming from it which has never been there before. Both the hot water and central heating still get hot and I have bled all of...
  7. A

    Ferroli optimax he 18 s problem!!!

    Hi, I am an engineer, and im having an issue with an optimax.The fault f10 flashes up...its saying in the manual that the issue is pointing to the flow sensor. When its turned on it says f10...it sounds like its running, the pump runs for a few seconds the stops,and starts again and does the...
  8. C

    Strange Noises from boiler

    Hiya, I have an Ideal Classic FF230 system boiler which has started making noises that it hasn't done previously and was hoping that someone would be able to tell me if I should get someone out to look at it please? I will try to describe the noises the best I can, I have so far resisted...
  9. M

    Water pump in multipoint

    Hi - the pump in our boiler is heating up but not spinning - its been taken apart and spins freely but won't spin when its back in the boiler - any suggestions? Thanks all
  10. M

    Ideal isar HE30 sounds like a motor bike and gauge bounces.

    Ideal isar HE30 sounds like a motor bike and the pressure gauge bounces, on demand for domestic hot water (d) and on domestic hot water preheat (t), this is an intermittent problem. BG have replaced the orange PCB module (twice), condensate trap, DHW heat-exchange, diverter valve cartridge and...
    • massgsm
    • Thread
    • arial assembly diverter gauge he30 ideal isar motor problem sounds water
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  11. D

    potterton 24 faullt Heating staying on even when switched to just the hot water

    Hi Boiler is a potterton performa 24 combi When the heating has been on for a while then turned off and switched to just the hot water symbol, the heating stays on, even when the boiler thermostat is set to zero, the heating is very hot and is using a lot of gas. The radiators are boiling hot...
    • davethomas
    • Thread
    • boiler central heating system hot hot water potterton sounds switch switched water
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  12. F

    Firebird Combi boiler problems

    Hello I have a Firebird Combi Enviromx Slimline C26 boiler (don't laugh). Its less than 18 months old & professionally installed and been working fine until very recently. Now the hot water seeems to be very intermittent. Most of the time its fine but occasionaly it never gets above luke...
    • farmer.palmer
    • Thread
    • boiler combi combi boiler firebird intermittent never oil photocell problems sounds
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  13. M

    Baxi Main Combi 24HE

    Alright team, Went to change an expansion vessel today, job done etc, then the customer starts mentioning that randomly the boilers flame failure light comes on. Checked all normal things, made sure condensate trap wasnt blocked etc. Pump was fine, fan was fine, however occasionally it would...
  14. F

    Pressure loss combination condensing boiler

    I have a Worcester-Bosch greenstar boiler which is approximately 4 years old, I know absolutely nothing about plumbing apart from there are plenty of cowboys out there. My boiler pressure is all over the place, it feeds 8 fairly big radiators on a closed system. Recently there's been a slight...
    • fly7471
    • Thread
    • boiler combination condensing condensing boiler oil pressure pressure loss sounds
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  15. M

    Worcester danesmoor

    Hi i have a worcester danesmoor 15 - 19 oil boiler we have just had the central heating flushed but now the boiler will run for a short time the pump in the airing cupboard sounds to be running the pipe gets very hot with in a couple of inch of the elbow which connects to the pump any ideas ...
  16. P

    Leak

    I have a leak somewhere under my groundfloor that is going to be a nightmare to get to. Is there an internal pipe sealant that I could buy to do the job?
  17. M

    worcester bosch problem

    I have a greenstar 24i bolier out of warranty and has developed a problem there is a gurgling noise and it sounds like the boiler is contantly filling up with water, the condensate pipe is clear the pressure ok, and i have bled all the rads. initially the reset button was flashing and the blue...
  18. E

    Ecodan

    Never seen one as refuse to go and pay for more courses, got one to look at tommorrow, using around 33kw of electric a day, which is surely not right, sounds like a right **** job, anyone have any specifics to look out for on these or settings that are usually an issue
  19. P

    Noisy magnaclean - any ideas?

    Hi guys, my magnaclean is noisy. It makes it sound like someone is having an eternal pee in my cupboard. Not great considering the cupboard is inside the spare bedroom. It's been like it pretty much since installation. Is it a faulty unit? Too much air or just something I have to put up with...
  20. A

    Glowworm Ultracom CXi fires up heating for a few seconds then stops

    I have a Glowworm Ultracom 30Cxi and this is only its third winter. When I have come to turn the heating on for the first time this year the little flames appear on the display, then after a few seconds go back to nothing. I have checked the error log and it has several entries for "F22". I...
    • andyg1
    • Thread
    • engineer fires glowworm heating seconds sounds stops ultracom valve water
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
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