Vokera Linea plus "Failure to ignite"

[gorf]

We bought the house new in 1999 with this boiler installed. In the colder months earlier this year, the boiler occasionally cut out and showed the red flashing LED and error code 01. We got it serviced as it was due anyway but it still did it occasionally. Over the summer months it behaved fine, no cut outs. Now the weather is getting cold again, it has started the cutting out again, sometimes 2 or 3 times a day.

I caught it in the act one day, it was firing fine then i head two clicks about 2 secs apart and looked up to see the red led flashing. the fan continued to run for about 15 secs after then shutdown. I can nearly always get it to work again by turning it to reset the back to heating/hot water.

Looking through the fault finding chart it says it might be ignition control or the PCB as two possible faults. Is there any way i can narrow it down any given it doesn't fail all the time? I assume the outside temperature must be a factor here as we had no problems over the summer?

Thanks for any advice offered.

 

[Agile]

I would be checking the fan/venturi/APS but these are all components that would usually only be worked on by a CORGI.

Tony

 

[gorf]

I need to bump this thread again as now the weather has turned colder our boiler is starting to lock out with its "Failure to ignite" fault 2 or three times a day.

Nobody is willing to come and look at it the boiler as it is an intermitant fault, even Vokera so unless I can make it fail on demand (unliekly) I am stuck.

Does anyone know if, when the boiler is showing it's fault code, is there any measurements or readings I can take that would be able to further help in diagnosis? I have a multimeter and am fairly confident at taking readings but was just wondering if there was any sensor/valve or whatever readings that would still be showing any useful readings before i reset the boiler?

Any help is greatly appreciated!

 

[gas4you]

I would think it is something because your rads are now being used as opposed to summer time.

What happens if you run the hw for a long while? Is it still ok?

Does it overheat after you have run a tap and it goes back to ch?

Does it overheat if the room stat is turned off?

 

[nickso]

take the pcb's out a look for dry joints on them. the linea boards aren't quite as bad as other vokera boards for this but your fault is intermittant so its worth a go.