firebird super q cutting in and out

galway1973

Hi
My boiler is cutting in and out every min or so.cleaned out boiler but it was pretty clean.the oil is set at 8 bar and tried adjusting the air shutter but no good.if the room sealed cover is left of it seems better.its like its short on air but i cant see anything blocking the air supply.any ideas?
Thanks

aujopimur

Lack of circulation, check the pump.
Check for air in the boiler as well, or faulty boiler stat.

galway1973

aujopimur wrote: »

Lack of circulation, check the pump.
Check for air in the boiler as well, or faulty boiler stat.

Thanks for reply
but the burner keeps running just no flame for about 10 or so seconds??

jimf

this sounds like your boiler is choking in its own flue gas

typical symptom of above especially if it runs ok with cover removed

galway1973

jimf wrote: »

this sounds like your boiler is choking in its own flue gas

typical symptom of above especially if it runs ok with cover removed[/Quote

Thanks for reply
How can i fix this?

jimf

first place to look is gasket where burner is mounted to boiler can you see any
blacking around that area

galway1973

jimf wrote: »

first place to look is gasket where burner is mounted to boiler can you see any
blacking around that area

There is blacking there alright.i will replace with a new one that i have.failing that any thing else you can think of while i am replacing that.thanks

jimf

go with that first it may solve your problem just make sure mounting flange that
burner is fitted to is not warped and is making a good flat contact to boiler face

could also be drawin from further up the flue but try as suggested first

galway1973

jimf wrote: »

go with that first it may solve your problem just make sure mounting flange that
burner is fitted to is not warped and is making a good flat contact to boiler face

could also be drawin from further up the flue but try as suggested first

Thanks i will let you know how i get on

Jazzmaster

jimf wrote: »

this sounds like your boiler is choking in its own flue gas

typical symptom of above especially if it runs ok with cover removed

How can the burner be choking on its own flue gas if it's not actually running?

As this boiler is a Super Q I presume it's in your kitchen or utility. Due to the danger of an improperly set burner producing carbon monoxide you should not change any of the settings unless you know exactly what you're doing. Call a plumber as there are any number of problems which could result in the burner locking out after 10 seconds as you're describing. And be wary of advice unless you know the credentials of the person offering it.

Billy Bunting

Jazzmaster wrote: »

How can the burner be choking on its own flue gas if it's not actually running?

.

My boiler is cutting in and out every min or so.

Safe to presume this means its running and then not running.

I read no mention of locking out.

jimf

READ THE POST AGAIN the poster states his boiler is cutting in and out every minute
to me that means its running im not saying im right its only my opinion he asked for a bit of advice i gave it what do you think the problem is likely to be

and as far as calling a plumber to sort this problem do you not mean an oftec reg engineer who will have an fga to check and set the boiler to manf specs

Jazzmaster

galway1973 wrote: »

Thanks for reply
but the burner keeps running just no flame for about 10 or so seconds??

You can't assume anything BillyBunting. If you read the entire thread you would have seen this. I'm erring on the side of caution with my advice.

Jazzmaster

jimf wrote: »

READ THE POST AGAIN the poster states his boiler is cutting in and out every minute
to me that means its running im not saying im right its only my opinion he asked for a bit of advice i gave it what do you think the problem is likely to be

and as far as calling a plumber to sort this problem do you not mean an oftec reg engineer who will have an fga to check and set the boiler to manf specs

No I definitely meant call a plumber. Just because you're an oftec engineer doesn't mean you know a thing about heating systems. We all know how many so called "oftec engineers" are being churned out by the various training centers without knowing the first thing about plumbing and heating.

Billy Bunting

Jazzmaster wrote: »

You can't assume anything BillyBunting. If you read the entire thread you would have seen this. I'm erring on the side of caution with my advice.

And where does it mention "locking out" ?

Most of the members of this forum who give their advice are highly trained professionals and the Tech section of this forum vets their credentials.

jimf

please post back and offer some constructive advice to this poster

again i ask what do you think is the cause of this problem i am willing to accept i may be wrong its hard to know when your not standing over boiler

i suppose you know what fga stands for ???????

Jazzmaster

Billy Bunting wrote: »

And where does it mention "locking out" ?

Most of the members of this forum who give their advice are highly trained professionals and the Tech section of this forum vets their credentials.

The original poster mentioned further down the thread that the burner "ran for 10 seconds but no flame". If the burner runs and doesn't fire then it locks out due to the photocell not seeing a flame. I thought any highly trained professional would know this. It's one thing giving advice on how to reset a high limit stat or venting an oil line but I draw the line at that point.

Billy Bunting

Jazzmaster wrote: »

The original poster mentioned further down the thread that the burner "ran for 10 seconds but no flame". If the burner runs and doesn't fire then it locks out due to the photocell not seeing a flame. I thought any highly trained professional would know this. It's one thing giving advice on how to reset a high limit stat or venting an oil line but I draw the line at that point.

You obviously know nothing, or very little about the topic so i suggest you go give advice about bikes. :rolleyes:

jimf

dont you mean trikes billy

Jazzmaster

jimf wrote: »

please post back and offer some constructive advice to this poster

again i ask what do you think is the cause of this problem i am willing to accept i may be wrong its hard to know when your not standing over boiler

i suppose you know what fga stands for ???????

I did offer some constructive advice. Unless you think that "call a plumber" was not constructive advice? The reason I am not offering advice on how to fix is because as you said yourself its very hard to tell what the problem is unless you're actually standing over the burner. Also I would hesitate to offer advice on a burner that is located in the house as I presume is the case with this Super Q.

Dirty electrodes? Dirty photocell? Faulty control box? As for your fga question....seriously?

Jazzmaster

Billy Bunting wrote: »

You obviously know nothing, or very little about the topic so i suggest you go give advice about bikes. :rolleyes:

No mention of the fact that the burner is obviously locking out? If the burner runs for 10 seconds but doesn't fire it locks out. The advice i offered was based on safety first and foremost. If the original poster didn't know what was wrong at that point he should get someone out on site who did.

jimf

the poster states his boiler runs ok with the cover removed

what in the name of jaysus do dirty electrodes dirty photocell or faulty control box have to do with it

Billy Bunting

Jazzmaster wrote: »

No mention of the fact that the burner is obviously locking out? If the burner runs for 10 seconds but doesn't fire it locks out. The advice i offered was based on safety first and foremost. If the original poster didn't know what was wrong at that point he should get someone out on site who did.

And thats a Plumber????

Thats a fairly substancial edit of your post, you must be attempting to engage brain cells... dont bother, still bollox.

Jazzmaster

jimf wrote: »

the poster states his boiler runs ok with the cover removed

what in the name of jaysus do dirty electrodes dirty photocell or faulty control box have to do with it

It seems to me we're interpreting the original posters description of the problem differently. That's the problem with texting. Your advice is as valid as mine based on our different interpretations of the information supplied.

It has happened many a time that the problem I found on site was quite different to the symptoms and problem described over the phone or in a text and I'm sure this has happened to you too.

shane0007

@Jazzmaster
This forum, for the most of us, is about helping/assisting the public person with issues they have and also about assisting other plumbers, boiler technicians, DIYers, etc.
In nearly every thread that you "contribute to" ends up with you arguing and pi**ing everybody off and the OP gets forgotten about as the thread gets so diverted to the point of comparing the size of your balls with everyone else's. Perhaps that is your thing, but it is certainly not mine. I used to enjoy coming on Boards to learn and assist but due to certain individuals, it is not so enjoyable anymore. It is not what I signed up for.
Hopefully you will see this and stop arguing with everyone and let Boards get back to what it is intended for.

jimf

i agree 100% but why go off on a rant about what all oftec engs dont know
im sure if the poster is following his thread he will be wondering what all the ****e
was about he asked a question we tried to help if he comes back and says problem solved thats job done but i for 1 will be advising him to have his local oftec reg eng check his combustion settings asap as stated by yourself you dont adjust oil/air settings on an oil boiler unless you have the proper test equipment namely pressure gauge/fga

shane0007

galway1973 wrote: »

Hi
My boiler is cutting in and out every min or so.cleaned out boiler but it was pretty clean.the oil is set at 8 bar and tried adjusting the air shutter but no good.if the room sealed cover is left of it seems better.its like its short on air but i cant see anything blocking the air supply.any ideas?
Thanks

You seem to have some knowledge in that you are able to check pressures, etc. but a bit more info is required. The SuperQ is a sort of balanced flue, in that it takes air for combustion from outside, but it can share pocs if leaked through a door seal as it is a balanced box.

You say the boiler runs for about 12 secs. Is this from initial start up, i.e. it's 12 second purge and then does it fire, or does it fire, run for about 10 secs, stop firing but fan still running and then try to fire again and repeat, but never goods to lock.

jimf

it runs ok with cover removed shane so this is why im thinkin fluegas recycling
as its now getting its air from another source so its no longer bf as such

shane0007

Apologies, I missed that. Got too wrapped up in all the crap. Yes it could indeed be recycling FG's and therefore starving of sufficient O2.

OP should also not adjust air damper without analysis to ensure it is combusting at the correct levels. I will give that one to Jazzmaster. Too little air = carbon monoxide but equally too much air does so also.

jimf

you said it earlier all the crap diverts the posters away from the topic

Jazzmaster

I'll take on board your criticism and will moderate my style. My intention was to help and inform however I may have been too aggressive in my delivery. But I didn't resort to calling anyone's contribution "bollox" nor did I accuse anyone of "trying to engage brain cells".

As I said I think the biggest problem was the poster's lack of clarity in the information provided. Firstly he said the boiler range for a minute before cutting out. Then he said it ran for ten seconds but no flame. Then that it ran ok with the cover off. Instead of arguing I should have tried to clarify the problem as you are now trying to do.

shane0007

Thank you.

KoolKid

Locked. . Don't see any point in this going any further.