The Naked Scientists

The Naked Scientists Forum

Author Topic: Why does our boiler keep banging and clanging??  (Read 21023 times)

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« on: 05/01/2009 23:13:02 »
Whenever we turn the boiler on (central heating system of my house!) it makes this very loud clanging and banging that vibrates our house.. about 5 clangs per go, and about 5 gos per switching on the boiler!

Why do you think this is? Also, I think it's coming from the attic, or our boiler room.. We've had engineers to come look, and they say they solved it, and it still does it!


 

Offline Karsten

  • Hero Member
  • *****
  • Posts: 701
    • View Profile
    • Fortunately still only a game
Why does our boiler keep banging and clanging??
« Reply #1 on: 06/01/2009 00:22:00 »
I lived in a house once where it did a similar noise. It was not the boiler though. It was the copper water pipes. They expanded when they got hot and contracted when they got cooler and the metal brackets they slipped through made that noise. If it really is the boiler, I have no clue.

That did not help, did it?

Karsten
 

lyner

  • Guest
Why does our boiler keep banging and clanging??
« Reply #2 on: 06/01/2009 10:02:11 »
You could try spraying some furniture polish (or anu other lubricant, for that matter) in the clips that hold the pipes leaving the boiler and any other points of contact. It may be just one of them which is causing the noise and the wax could lubricate things just enough. If you can get inside the boiler, you could try the same on internal fixings.
 

Offline Andrew K Fletcher

  • Neilep Level Member
  • ******
  • Posts: 2331
  • KIS Keep It Simple
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #3 on: 06/01/2009 10:33:31 »
Baxi Combi Boiler by any chance?
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #4 on: 06/01/2009 12:23:15 »
I lived in a house once where it did a similar noise. It was not the boiler though. It was the copper water pipes. They expanded when they got hot and contracted when they got cooler and the metal brackets they slipped through made that noise. If it really is the boiler, I have no clue.

That did not help, did it?

Karsten

Very clever.. It might be that, because it's not exactly coming from the boiler (the big cylinder thing). Do you mean the brackets that hold the pipe in place?

And can you relate this noise to my internet going down? Because every time it clangs, my internet goes down for a minute then comes back to life!
Every time.. It's weird.!
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #5 on: 06/01/2009 12:25:48 »
Baxi Combi Boiler by any chance?


Not one of those. An old version.
Similar to this, but yellow and old!

 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #6 on: 06/01/2009 12:33:27 »
We had that a few years and it was caused by air in the system expanding when the water heated up.
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #7 on: 06/01/2009 12:36:53 »
Hmm.. How did you solve it?
And could you relate it to my internet going down at exactly the same time it clangs?
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #8 on: 06/01/2009 12:49:44 »
We got the chap who installed it to bleed the air out.

I haven't a clue why your internet would break at the same time. Or have I...
 

lyner

  • Guest
Why does our boiler keep banging and clanging??
« Reply #9 on: 06/01/2009 13:34:55 »
Baxi Combi Boiler by any chance?



Not one of those. An old version.
Similar to this, but yellow and old!


But that's the hot water tank, Seany, not the boiler.
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #10 on: 06/01/2009 13:44:57 »
Baxi Combi Boiler by any chance?



Not one of those. An old version.
Similar to this, but yellow and old!


But that's the hot water tank, Seany, not the boiler.

Takes an immersion heater by the look of it.
 

Offline Madidus_Scientia

  • Neilep Level Member
  • ******
  • Posts: 1451
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #11 on: 06/01/2009 14:37:55 »
Is your internet transmitted wirelessly?
 

paul.fr

  • Guest
Why does our boiler keep banging and clanging??
« Reply #12 on: 06/01/2009 15:02:08 »
(Hi Seany, and welcome back)

Could it be that the thermostat is not working properly, and the water is being overheated?
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #13 on: 06/01/2009 15:21:43 »
(Hi Seany, and welcome back)

Could it be that the thermostat is not working properly, and the water is being overheated?

I seem to remember the plumber saying that was what was causing the air in our system to become blocked; or maybe it was the steam caused by that. It was about 20 years ago so I can't remember for certain except that he had to drain the system. What I do remember, though, was that it sounded like a horse in hobnail boots dancing on the pipes.
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #14 on: 06/01/2009 16:01:21 »
Baxi Combi Boiler by any chance?



Not one of those. An old version.
Similar to this, but yellow and old!


But that's the hot water tank, Seany, not the boiler.

Takes an immersion heater by the look of it.

Ah my bad ;D
I'm not a professional plumber.. yet ;D
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #15 on: 06/01/2009 16:01:31 »
Is your internet transmitted wirelessly?
Yup..
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #16 on: 06/01/2009 16:02:13 »
(Hi Seany, and welcome back)

Could it be that the thermostat is not working properly, and the water is being overheated?

I don't think the water can be overheated.. because it's only a few minutes after I turn the boiler on.. Also, it constantly keeps clanging like every 10 minutes or so..
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #17 on: 06/01/2009 16:03:03 »
(Hi Seany, and welcome back)

Could it be that the thermostat is not working properly, and the water is being overheated?

I seem to remember the plumber saying that was what was causing the air in our system to become blocked; or maybe it was the steam caused by that. It was about 20 years ago so I can't remember for certain except that he had to drain the system. What I do remember, though, was that it sounded like a horse in hobnail boots dancing on the pipes.

Good analogy on the sound :)
 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8132
  • Thanked: 53 times
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #18 on: 06/01/2009 16:52:21 »
And can you relate this noise to my internet going down? Because every time it clangs, my internet goes down for a minute then comes back to life!
Every time.. It's weird.!


The electric motor which drives the pump circulating the hot water in your heating system could be giving off RFI which is interupting your Wi-Fi link.

So your central heating pump (motor) could be worn out, or blockage in your pipes (e.g. limescale) is putting an excessive load on the motor.
« Last Edit: 06/01/2009 17:02:08 by RD »
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #19 on: 06/01/2009 16:53:56 »
Hmm.. May I ask what RFI is?
 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8132
  • Thanked: 53 times
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #20 on: 06/01/2009 16:57:22 »
Radio Frequency Interference.

Electric motors can be strong sources of RFI.
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #21 on: 06/01/2009 16:59:43 »
Hmm. Our wireless router is about 4 metres away from the motor thing.(I think)
Can you specify where the motor may be located?
 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8132
  • Thanked: 53 times
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #22 on: 06/01/2009 17:10:38 »
I don't suggest that you attempt to replace a central heating pump yourself,
 you could end up with an unintentional indoor swimming pool, or electrocuted.

If the pump is knackered it's a job for a central heating engineer.

You could try making sure that all the radiators have been bled.
« Last Edit: 06/01/2009 17:15:59 by RD »
 

Offline Seany

  • Neilep Level Member
  • ******
  • Posts: 4209
  • Live your life to the full!
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #23 on: 06/01/2009 17:14:23 »
I know I know.. I'm not that dumb :o
 

Offline Madidus_Scientia

  • Neilep Level Member
  • ******
  • Posts: 1451
    • View Profile
Why does our boiler keep banging and clanging??
« Reply #24 on: 06/01/2009 17:25:26 »
Is the pump in between your router and your computer?
 

The Naked Scientists Forum

Why does our boiler keep banging and clanging??
« Reply #24 on: 06/01/2009 17:25:26 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums