High pitched sound that rises and falls for hours on end.

[morty1]

Yes a recording.
Sounds like one for Derek Acorah

Honestly mate I'd laugh but it goes on all flipping night till about 1000 the next morning.

 

[mattylad]

Noise cancelling headphones?

 

[mattylad]

Some photo's might help too.
The wife, that nice girl living next door, the car you always wanted etc.
Maybe perhaps of the general area you think it's loudest in too

 

[mattylad]

Oh hang ye on, do you have a TV aerial on a pole outside?
I just remembered this same thing from many years ago and it turned out to be a TV pole was vibrating in the wind.

J

Post in thread 'Humming noise from chimney'

3 Apr 2019

Hi Jonathan Taylor or any others who maybe able to advise me on this problem,

How long did the nightmare you experienced with your TV aerial being the culprit of that annoying sound; before you found the answer? I have exactly same sound constant humming droning for many hours a day, whether windy or not, and have tried every other single thing elec off,water mains off ,gas off, etc and still the humming persists.It's not the worldwide hum,or tinnitus as i only hear it inside my bungalow and nowhere else.

Desperate to solve this as may have to move as such is this hell leading to...

• JonathanTaylor

 

[endecotp]

10-15 mins after going upstairs and it starts and here's where it gets even stranger. Regardless of the time I go upstairs. I went up on 3 different times at night over 3 days and everytime the same.

So what is your bedtime routine? Do you open or close any windows? Flush the loo I guess. Turn anything on or off? Is there a bathroom extractor?

Does it correlate with how windy it is outside?

 

[morty1]

okay a quick sketch for you. The room to the left with the green arrow is where the sound is emanating. That room has 2 rads & a utility sink/unit.
The bathroom has a towel rail, hand basin, shower and a bath. the room on the right has one large rad.
Its definitely not wind, there is no aerial mast. I've depressurized the unvented cylinder made no difference. Isolated the power to house to rule out anything electrical. last night as usual it started but on this occasion it wasn't really loud. Now this morning put on the upstairs heating and shower and you could clearly hear the sound but it was no longer in the corner. My thoughts are, we can hear the sound loud down stairs in the kitchen this morning. Now all of the upstairs pipework is on one side only apart from the 2 rads that have feed and return pipes going to them and I'm wondering if its still trapped air in the heating system but have no idea why most of the day its quiet until night. now the heating has been on for an hour at night of late but before i knocked the heating off for 2 days and it still happened. We've tried not flushing any toilet both upstairs and downstairs, made no difference. There's no extraction fan on as i killed the power to it and the sound the majority of the time is a high pitched tone rising and falling in the that corner marked but on several occasions you could hear it in the kitchen, down stairs bedroom and in the cupboard where the cylinder iswhich i would expect if it was air as all of the pipework runs on one side of the house. No windows open no external machinery.

 

[denso13]

My thoughts are, we can hear the sound loud down stairs in the kitchen this morning. Now all of the upstairs pipework is on one side only apart from the 2 rads that have feed and return pipes going to them and I'm wondering if its still trapped air in the heating system but have no idea why most of the day its quiet until night. now the heating has been on for an hour at night of late but before i knocked the heating off for 2 days and it still happened. We've tried not flushing any toilet both upstairs and downstairs, made no difference. There's no extraction fan on as i killed the power to it and the sound the majority of the time is a high pitched tone rising and falling in the that corner marked but on several occasions you could hear it in the kitchen, down stairs bedroom and in the cupboard where the cylinder iswhich i would expect as all of the pipework runs on one side of the house.

It does it with the main stop valve off, the main electrics and with the pressurised system depressurised. It isn't the water/heating system or anything electrical.

 

[morty1]

It does it with the main stop valve off, the main electrics and with the pressurised system depressurised. It isn't the water/heating system or anything electrical.

it still does it with the stopcock turned off. The only thing i cant check is the heating system but the boilers getting replaced on Wednesday and the system will be flushed before the new boiler is put into service. It started after we started using the upstairs when it was finished. it lasted about 3 bloody weeks and after continually bleeding the system it stopped so i put it down to air that was trapped. The only thing that has changed since then is that the other half switched on the outside tap then realized the bleed screw was still undone. turned the water off, tightened the screw and turned the water back and ever since that day its started again and won't bloody stop.

 

[denso13]

it still does it with the stopcock turned off.

Yes, so it can't be mains water/pressure related. I don't know what it is but you have begun ruling things out, which is a start.