Baxi HE 100 strange noise in combustion chamber

[Syty]

hello.
I went to do Landlord Today and came across this boiler:http://www.youtube.com/watch?v=xovzSSgH01w&feature=autoplay&list=LLbJ_2usmsAnuamggSZXKKXQ&playnext=1

It sounds like it would like to explode.. You can see that flame does change with the noise.
Any thoughts?
cheers

 

[diamondgas]

Syty ... What was the gas rate/operating pressure? The link comes up as private, by-the-way! Bit more info please

 

[SimonJohns]

If it Has the fibre burner it is probably shot.

I haven't heard it seen the video. But does it sound like a gun shot in start up.

Be careful with the burner. The fibre breaks really easy.

Boilers are also probe to electrode issues.
Flueways coking up.
Fans
Overgassing overtime

These are the faults I most see on these

 

[Syty]

hi
Does it work now?:http://www.youtube.com/watch?v=xovzS...KXQ&playnext=1
I sounds like some problem with the air. OP pressure was fine

 

[diamondgas]

Syty Yep link works! That is a weird noise .... I'd be wanting to hone it down to heat or mechanical initially ... I see the flame change but that may have something to do with the vibration produced? Check F&R temps and difference across boiler. I've heard similar noises produced by burners and it's down to the air gas mixture usually on initial purging. I'm assuming that you're GSR Syty, are you? Be aware that there's a limit to advice given here in open forum

 

[Syty]

actually this is room only for GSR members, so to write here proves that Iam one

 

[diamondgas]

actually this is room only for GSR members, so to write here proves that Iam one

Sozzzz mate your dead right My appologies, had me cautious glasses on and didn't realise we were here lol

Monitor the gas pressure p2, should stay at zero, thereabouts on a compensating valve! You could also monitor the inlet pressure for fluctuations too, mi's ask for min 18mbar! As well as checking the gas side you can monitor fga readings also! If it is over aerated/insufficient gas then you'd expect to see something strange going on there I believe

 

[GrahamM]

Check the combustion readings are spot on. Had similar Fart noise from Greenstar where ratio and CO were way off.

 

[Syty]

Sozzzz mate your dead right My appologies, had me cautious glasses on and didn't realise we were here lol

Monitor the gas pressure p2, should stay at zero, thereabouts on a compensating valve! You could also monitor the inlet pressure for fluctuations too, mi's ask for min 18mbar! As well as checking the gas side you can monitor fga readings also! If it is over aerated/insufficient gas then you'd expect to see something strange going on there I believe

no problem.
Iinlet pressure was fine I will be there Tomorrow to strip it down and check everything, so I will let you know.
thanx for replyies

 

[zeebeedee]

Check the combustion readings are spot on. Had similar Fart noise from Greenstar where ratio and CO were way off.

Ive had that when putting new gas valve on the green star he, set the gas rate and air mix correctly as per manufacturers instructions sorted the problem!

 

[Kev the gas]

Just watched the video, the ceiling seems damp around the flue, also seems a lot of water stains at the bottom of the boiler case.

Is the flue ok??

 

[Rickster123]

Don't think I would've left that one on over night mate. Sounds and looks like a fluing issue.

 

[dave1]

I've just t

 

[dave1]

I've just seen the video again, definatly need to inspect that flue. May off come apart.

 

[Billy Bob Bob]

just looked at the vid and i agree with the lads wet combustion box and ceiling ,you need to check that flue out and the condensate set up the noise sounds like either too much air is in the co mix that comes back to a flue issue or condensate backing up into the burner