Discuss Combi pilot light goes out. in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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make model ?
T
tackleburger
You sure it's a pilot light not the main burner coming on and shutting off once lit? If the later could be a number of things from gas pressure to flame sensing electrode. We need the model as stated to give real advice.
N
newbie1
ok what light is flashing???
need to check
pump running
fan ok
aps ok
etc etc etc you need to get an engineer to check it out it cant be diagonesed over the internet as each component incl the gas valve need to be checked
where are you located
the engineer should be checking these in sequence
also water pressure switch its is a methodical process of elimination ime afraid
need to check
pump running
fan ok
aps ok
etc etc etc you need to get an engineer to check it out it cant be diagonesed over the internet as each component incl the gas valve need to be checked
where are you located
the engineer should be checking these in sequence
also water pressure switch its is a methodical process of elimination ime afraid
R
REDSAW
not the venturi then?.
R
REDSAW
sort of, its located on the fan housing too.
is this a d.i.y repair attempt?.
is this a d.i.y repair attempt?.
N
newbie1
why are people trying to fix their own boilers its just a recipe for disaster
M
migoplumber
not many people have spare cash for fixing broken boilers at the moment, thats why they are attempting to fix them themselves, like this gentlemen states, he wouldnt fix it if he didnt know what he is doing. he could be a mechanic or a sparks or any other tradesman. most of us heating engineers, have related knowledge to other trades - and as for myself, i do my own electrics, building work and fix the missus car.
when your cold and short of cash you do what you have to. unfortunately playing with gas is slightly more risky and ever so much more illegal !
as for the OP if you wish to you could follow the fault finding flowchart in the manufacturers book, to help fault find, but as for testing various gas train related components, i would suggest you dont and just call your local trusted engineer.
i believe just today there is another dead bloke with poorly missus, due to a boiler problem.
good luck
when your cold and short of cash you do what you have to. unfortunately playing with gas is slightly more risky and ever so much more illegal !
as for the OP if you wish to you could follow the fault finding flowchart in the manufacturers book, to help fault find, but as for testing various gas train related components, i would suggest you dont and just call your local trusted engineer.
i believe just today there is another dead bloke with poorly missus, due to a boiler problem.
good luck
Last edited by a moderator:
R
REDSAW
there's nothing wrong with watching so try this.
On this boiler the fan runs at low speed at all times to maintain the pilot.Open hot water draw off tap.
The flow of water through the boiler makes the flow switch.
The fan changes to high speed and makes the fan switch.
The 24 Vdc gas valve opens and allows gas to the burner.
The main burner will light under the control of the DHW thermistor which is a PTC type, this modulates the burner via the modureg.
A DHW limit stat will shut down the burner if the thermistor fails and the temperature reaches 70°C. It will then cycle on and off as required. Should the DHW limit stat fail, the boiler overheat stat will open at 96°C and interrupt the thermocouple.
When the hot tap is closed, the burner goes off, the pump will then run for 2 seconds to clear any residual heat from the heat exchanger.
if yours is not doing so, its broken.
The flow of water through the boiler makes the flow switch.
The fan changes to high speed and makes the fan switch.
The 24 Vdc gas valve opens and allows gas to the burner.
The main burner will light under the control of the DHW thermistor which is a PTC type, this modulates the burner via the modureg.
A DHW limit stat will shut down the burner if the thermistor fails and the temperature reaches 70°C. It will then cycle on and off as required. Should the DHW limit stat fail, the boiler overheat stat will open at 96°C and interrupt the thermocouple.
When the hot tap is closed, the burner goes off, the pump will then run for 2 seconds to clear any residual heat from the heat exchanger.
if yours is not doing so, its broken.
N
newbie1
i understand the short of cash thing really but when undertaking any work inside the boiler then its essential to first ensure the boiler is gas tight before and after any work
also to ensure flue is correct
air supply is correct
this is part of regs so while someone may feel able to undertake a task is it that wise
also after replacing a part should you not recommission boiler and include all safety checks
what if boiler has faulty gas valve thats something i check every time i leave a boiler
just feel too many people are delving into a boiler without all the knowledge to leave it safe after
O
oldplumber
I agree, I understood this was a plumbers forum not a gas self help for diy, from then questions its obvious our boy knows ziltch and helping him only encourages him to break the law. If your not gas safe dont touch it and dont ask is my opinion
B
Bernie2
Hmm!
DIY repairs are the same story all the time.
People probably do it simply either to save money or to save from spending money they don't have.
Unfortunately combis seem everywhere and when they go off you loose all heat and hot water of any reasonable amount. Most houses don't seem to have an alternative heat source.
So what would you do, if the wife and kids are freezing and wanting a wash and you have no money to pay for a central heating repair person?
Don't forget £7ph on minimum wages, is not much, to pay a bill of £75ph or £160 repair fees plus perhaps materials.
My approach is to tell them what is involved and whether it may be a simple fix or not. Then explain what may be involved and any dangers.
Then at least if they do decide to have a go, its better they know something and perhaps be a danger, than perhaps to have a go knowing nothing and perhaps be a bigger danger.
Lets not forget, DIY gas repairs in your own home, are not illegal, just daft and dangerous if your not a competent gas person.
DIY repairs are the same story all the time.
People probably do it simply either to save money or to save from spending money they don't have.
Unfortunately combis seem everywhere and when they go off you loose all heat and hot water of any reasonable amount. Most houses don't seem to have an alternative heat source.
So what would you do, if the wife and kids are freezing and wanting a wash and you have no money to pay for a central heating repair person?
Don't forget £7ph on minimum wages, is not much, to pay a bill of £75ph or £160 repair fees plus perhaps materials.
My approach is to tell them what is involved and whether it may be a simple fix or not. Then explain what may be involved and any dangers.
Then at least if they do decide to have a go, its better they know something and perhaps be a danger, than perhaps to have a go knowing nothing and perhaps be a bigger danger.
Lets not forget, DIY gas repairs in your own home, are not illegal, just daft and dangerous if your not a competent gas person.
Last edited by a moderator:
P
Puddle
Hmm!
DIY repairs are the same story all the time.
So what would you do, if the wife and kids are freezing and wanting a wash and you have no money to pay for a central heating repair person?
QUOTE]
You should send them to work down pit or up cleaning chimneys,like the good old days,to much mamby bamby these days
If you can not afford to provide food,heating , Niki trainers ,Rolf Lauren shirts ,X boxes, 32" flat screen tv's and top range laptops with interchangable coloured covers,you should not be irresponsible and bring childred into this wonderful world!
B
Bernie2
Happy New Year, Puddle and All 2010.
N
newbie1
been into some right crapholes but guess what they allways seem to have plenty of cash for the **** and telly
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went to a house with coats on the beds as extra blankets and a 50 inch plasma in the lounge and yes they didnt stop moaning about what it would cost to reair their boiler
K
Kip
You find that alot Steve, funniest one was with a guy who was moaning over 100 pounds i took off him for a repair on a fire, and he drove a bentley!
O
oldplumber
Re: Bernie2
If you spend 3 -4 years training learning to do a competent job then you can feel precious with ones attitude to those who are asking questions about areas they do not have sufficient knowledge or experience to work on.
I still do not comprehend why people are looking to do work themselves to save a bit of cash and risk here most valued possessions ie wife and kids,
Its time hse took a home owner to court and prove they werent competent to carry out gas work and were the cause of an accident/death and stop the stupidity that occurs on a regular basis.
Yep Im precious and rightly so
If you spend 3 -4 years training learning to do a competent job then you can feel precious with ones attitude to those who are asking questions about areas they do not have sufficient knowledge or experience to work on.
I still do not comprehend why people are looking to do work themselves to save a bit of cash and risk here most valued possessions ie wife and kids,
Its time hse took a home owner to court and prove they werent competent to carry out gas work and were the cause of an accident/death and stop the stupidity that occurs on a regular basis.
Yep Im precious and rightly so
R
rob jefkins
Re: Bernie2
Blo*dy right mate !! Took me years of training and experience to get hold of my gas ticket and it's precious to me too.
If anyone can work on their boilers at a risk to other people then I need'nt have bothered !!!!!
Rob
Blo*dy right mate !! Took me years of training and experience to get hold of my gas ticket and it's precious to me too.
If anyone can work on their boilers at a risk to other people then I need'nt have bothered !!!!!
Rob
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