Hi . what you have to establish is , that when the boiler is supposed to be on , ie programmer and room stat calling for heat, that the boiler is running and trying to light or is doing nothing. Once you can do this then we have something to go on. You may be able to do this by staying by the boiler and getting someone to switch the programmer/ room stat on and off till the fault is replicated. Once this happens , you will have an idea of what is going on and we can take it from there , rather than guess work
Also you say random times ? This could be a warm start or frost stat setting on the boiler
We switch it on manually and this has always worked, the boiler is about 7 / 8 years of age. i looked at what the engineer did yesterday and have stripped the boiler to that point. I notice that only one of the electrodes is giving a spark, shouldn't bot of them be doing this?
i didn't mean to post that bit. i thought i was starting a new paragraph. i know i shouldn't probably be mucking about with this and don't really feel comfortable but I'm beginning to think the only way i can rectify this is to learn how to do it myself from scratch. i don't think it's on a frost setting the controller - the fros icon isn't on. i have run the water and the heater but whatever i run it fails to ignite and goes to re-set after a couple of time trying. it's like the gas isn't coming
the boiler wants to start - fan starts - electrodes try to ignite - just the one but then that's it.
Ok . do you get a flame / ignition if only for a second?
this has happened because i have seen it but typically speaking, nothing
Ok . can you just confirm the boiler is a Combi?
performa 30 HE
GC 47-393-13 if that's any help.
i thought you'd gone then!
Ok thanks . can you hear the fan running when this happens?
yes - runs like a good 'un - everytime
and then the one electrode starts sparking away while the other one does nothing.
Ok , but no flame . you said the air pressure valve was changed . do you mean air pressure switch?
Ok , do you have any fault codes come up with the LEDs flashing / slow flash ,fast flash ?
just the red re-set
but will just go up and check that. will take computer with me
Ok , thanks
temp light steady green. red flashing light on the 30 degrees sign - by the flame - this is re-set isnt it?
2 mins , I'll just check fault codes in the manual , thanks
bit cold up here :-)
Lofts are freezing in the winter and like a sauna in the summer, lol.
i know - not too bad really. it was doing this last winter, but not quite to the same extent and i thought it was because condenser pipe was getting blocked. it has a shallw run off
that's when it was really cold - re-setting then.
KnowingKnowing these boilers pretty well , I can confidentlconfidently say that you need to replace bthe temperature stats/ thermistors . most probably thethe central heating one but I would change the hotvwater one as well at the same time. When these start to go the boiler is thinking it is up to temperature and didn't need to fire upn. Luckily they are not too expensive ( well compared to other components ) around 25 each.
Sorry for my typing
i don't know what these are
what are the components again?
They are small temperature sensors that sense the water to temperature and regulate the flow temperatures of the radiator or hotvwater .they are fairly easy to fit
i know where a plumbing place is - maybe I can order them there. Wonder how long they generally take to arrive
i'm just not clear what to ask for - a temperature stat
Most will stock them , pretty common part to fail
if you could just tell me what to ask for specifically then thank you very much
Sure let me see if I can find thecvpart numbers
Ok . take the boiler model and GC number . this is the part you vneed temperature sensor x 2. Manufacturers part number 247394 part GC number 342 571 . by the way the manual ( free boiler manual.com) shows exactly where they are if you want to change them yourself .
i don't have a manual - maybe i could download one
i only jus tsaw that you included the website - sorry! Thanks a lot
Yes go to free boiler manuals.com. click on potterton. , scroll down for the model and check the GC number is ***** .
Page 32. Did you find it?