Ideal HE12 Boiler still thumping

[jweaver]

For some reason, a reason I am not clear about, my first thread got locked..

https://www.diynot.com/diy/threads/ideal-he12-boiler-thumping.589249/page-3

Since I still need help, I have no choice but to open another thread..

I am a little disappointed with the engineer i used.. He was mega efficient at the start, coming 2 days in a row to inspect and then install parts.. But now he is being very distant.. And my only choice may be to find another engineer.. Perhaps even go directly to Ideal as suggested.

But before I do, I had one last throw of the dice.. As suggested by some people here, and as a recommendation by the engineer, I disconnected the Condensate and ran the boiler with it draining into a bucket.

I was 99% sure this wouldn't help as I sucked cleaned out the condensate pipe by filling the sink with water and then sucking the entire contents through the pipe with a vacuum, so I know it wasn't blocked.

But nether the less, I did the test.. The boiler ran.. The pipe dripped.. The bucked filled slowly with condensate...

But after a while the thumping started again.. Exactly as it was.

So I know this isn't a fan.. Electrodes, or condensate.. So I have no idea what to try next.

I just wish I had known about the "fixed price repair" before as this would have been a logical step from the start.

Oh yes.. @DP.. You asked about other noises.. One of the things you said was "fog horn".

This is interesting as another problem in the house that I am investigating is an on/off low hum when the heating and/or water is on.. It only happens occasionally making it hard to debug.. But I have traced it to the airing cupboard and specifically the tank.. But its crossed my mind that the source of the sound could originate from somewhere else (i.e the boiler), even though you can't hear it downstairs at the boiler.

The reason I mention this, is that it sounds exactly like a fog horn.. Quiet.. Low.. And hard to hear.. But when it hums, thats the best description of the sound..

Does this mean anything to anyone?

 

[CBW]

For some reason, a reason I am not clear about, my first thread got locked..

Perhaps mods thought it was too much gas advice being given and sought in an open forum. My advice is get a local engineer familiar with your boiler model or get Ideal out under the fpr.

 

[jweaver]

Perhaps mods thought it was too much gas advice being given and sought in an open forum. My advice is get a local engineer familiar with your boiler model or get Ideal out under the fpr.

I guess.. But we never really got into any "gas" advice.. Everything we were talking about was gathering information/evidence for a boiler engineer...

 

[DP]

Some queries did go into gas related areas.
Fir instance, fog horn noise will certainly be gas related as CO readings go through the roof and can kill the gas test equipment in dome cases.

 

[jweaver]

Some queries did go into gas related areas.
Fir instance, fog horn noise will certainly be gas related as CO readings go through the roof and can kill the gas test equipment in dome cases.

Right... But I am not going to start playing with the gas side of the boiler but I do need to know what is relevant and what not, when I get an engineer in... But I needed to get more info on your "fog horn" comment as I do get this very noise.. But its VERY quiet... And it comes directly from the tank.. if I get into the airing cupboard when it happens, its so low, the sound is all around me.. But when I put my ear to the tank, its right inside, but possibly travelling along the pipes.

But I listened to the fog horn sounds that a boiler can make on a web site and its not like that... So i am not sure if my "fog horn" sound has anything to do with this.

 

[Anon_E_Mouse]

The condensate pipe is a part of the boilers fluing system, even disconnecting the pipework would be considered as gas work.

 

[jweaver]

The condensate pipe is a part of the boilers fluing system, even disconnecting the pipework would be considered as gas work.

What? even at the sink end? So this means I can't do any plumbing under my sink because the Condensate connects to it? So does this mean that when I fixed a leak under the plug in bowl, and installed my washing machine I was playing with 'gas'?

For some reason, the boiler engineer I used isn't replying now.. I am not even complaining that I paid for parts that wern't needed and am happy to pay more to get it fixed.. I think i need to look elsewhere. Where does one get a Ideal engineer? Direct from Ideal??

 

[Anon_E_Mouse]

What? even at the sink end? So this means I can't do any plumbing under my sink because the Condensate connects to it? So does this mean that when I fixed a leak under the plug in bowl, and installed my washing machine I was playing with 'gas'?

For some reason, the boiler engineer I used isn't replying now.. I am not even complaining that I paid for parts that wern't needed and am happy to pay more to get it fixed.. I think i need to look elsewhere. Where does one get a Ideal engineer? Direct from Ideal??

Of course you can do work on the plumbing side of waste but the actual condensate pipework (ideally) should be done by a Gas engineer.

 

[delmel]

I just had a similar thing, it was a pump jaming up and therefore flow and return was not running correctly and it bangs and shut the boiler down. Are you getting any fault code. I took the pump apart and got it spinning fine, then boiler fired, no banging, and ran fine after. Note to be clear it sounded like it was the boiler banging not the pump.

 

[jweaver]

I just had a similar thing, it was a pump jaming up and therefore flow and return was not running correctly and it bangs and shut the boiler down. Are you getting any fault code. I took the pump apart and got it spinning fine, then boiler fired, no banging, and ran fine after.

When you say pump.. Do you mean the CH pump? The pump seems to run fine but I am thinking that its something to do with the "water" side of the boiler...

When i get the thumping it appears that the boiler is shutting down normally (i.e demand has gone or boiler reached temperature)... And I get no errors...

I should upload the video so you can hear it and perhaps someone might have a view..

 

[jweaver]

Here

 

[fixitflav]

Here

Doesn't sound right! You say the pump runs fine, but have you opened it up? My boiler was making kettling noises (though nowhere near as alarming as yours) and when I took the pump apart the impeller was full of crud. New pump cured it. You don't need to remove the pump from the pipework, just isolate and remove the 4 Allen bolts. Might be worth eliminating that as the problem.

 

[delmel]

fixitflav, exactly what I did

 

[delmel]

Here

Not sure, sounds midly like a similar problem. That is the old ICOS Ideal boiler that had very bad reports so could be anything. There is a man called Allan Hart, google him on you tube, may be worth you sending him that, he is an Ideal specialist

 

[Hason]

Main hex is issue, restricted flow and when at certain temperature creates that noise