Hob burner?

[newgas]

Had a look at a hob today and the middle Burner the biggest one was not lighting up fully although the rest of the burners were.

I put my digi manometer on the injectors and they all had good bp-upto the injectors inc they middle problem burner, it wasn't dirty or blocked.

What could the problem be? I'm sure I have come accross this same problem before but can't remember where.

TIA


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[SimonJohns]

congealed fat in the orifice or injector
jif in the cuts on the burner ring

they most comman problems ive come across

 

[armourer]

Agreed with Simon or some of these hobs with the wok burners can be huge.

What about pipe sizing?

 

[newgas]

Well injector was cleaned first thing and when pressure checked with me digi mano. it was 23mbars same as the other injectors.

I could'nt figure it out, other than to take the hob out and investigate with the pipes exposed , did'nt have the time tho.

 

[armourer]

What did it rate against the badge?

 

[gasmarc]

Do people actually remove an electric oven below a gas hob to see a data badge ?

 

[armourer]

Do people actually remove an electric oven below a gas hob to see a data badge ?

Yes. How else do you know if it is on a flexi or has an isolation?

 

[newgas]

I did'nt rate it just took the mbar off the injectors, I think I have forgot the correct procedure for rateing a hob

 

[SimonJohns]

I did'nt rate it just took the mbar off the injectors, I think I have forgot the correct procedure for rateing a hob

If you get some gas through ring you will get the system standing pressure. Needs a good clean. But if you can't get it working correctly. Then sticker it up and turn it off

 

[gasmarc]

Good point A , I wont remove an electric cooker on heath and safety grounds , but will have a peak in side cupboard

 

[newgas]

Do people actually remove an electric oven below a gas hob to see a data badge ?

It takes a couple of mins to get the elec oven out for checking, It's necessary on a llgsc

 

[armourer]

Good point A , I wont remove an electric cooker on heath and safety grounds , but will have a peak in side cupboard

H&S grounds??

You dont touch the electrics, its 4 screws and lift forwards.

If you don't do this you might as well say I don't do hobs.

 

[newgas]

H&S grounds??

You dont touch the electrics, its 4 screws and lift forwards.

If you don't do this you might as well say I don't do hobs.

It's also a top contender for checking for drops on tightness , so oven out is a must.

 

[AlexGas]

Is it correct injector for the burner?

 

[gasmarc]

More things to put on my to do list,

I suppose I should never assume the job has been done correctly

:thinking2:

 

[newgas]

Is it correct injector for the burner?

Yes it was the original injector.
No conclusive answer yet, heres hoping someone can come up with the answer as to why this happens.

 

[mfgs]

I agree with simon. Did you take the injector out and clean it thoroughly? The last one I had like that, I took the burner off and soaked it in hot water, blew it through with compressed air etc as it was a sealed unit and you couldnt see all the internal passageways and that cured it, along with cleaning the injector.

 

[newgas]

All clean as a whistle inc. top and injector .

Maybe the trouble is in the tap orifices??