Boiler not firing up

[Pete999]

you get flame recognition across the electrodes ac currant coming from the pcb when rectified across the electrodes go back to pcb dc currant

Sultanas!!

 

[telectrix]

what for ignition

call
fan runs
gas valve opens
pilot lights
main burner lights
gas safe engineer runs for cover.

missed a few steps for safety but you get the idea

corrected that for you.

 

[buzzlightyear]

what for ignition

call the boiler a t&&T
fans runs wild
a fart of gas the valve opens from behind
pilot lights a smoke
main burner lights are on nobody at home

missed a few steps for safety but you get the idea

corrected that for him.lol.

 

[Corbs]

corrected that for you.

naa never unless your hot boiling to get the gravity hot water working

 

[DIYfan]

Hi, just an update, I waited until my regular boiler repair man came back from holiday so he's just been this morning.

It was a blocked injector which he's cleaned up and got it working again, he's also serviced it as it was due one.

Great price too, barely more than he charges for a normal service

 

[PEG]

Just on the subject of flame rectification...i got to talking about this process,with a heating engineer pal,and he said the boiler manufacturer he was accredited for,just had a simple set of tests,to identify a rectification issue - then they replace the assembly.
He wanted to know the method of it's operation,and if each step could be tested.
I did this with him,and on the strength of it,he has purchased an AVO 410 Megger multimeter,which is what i used,in the demo

 

[DIYfan]

Just bumping this one again.

The boiler broke down again, had my regular repair guy out, it was the thermostat that had gone, he came yesterday and fitted a new one.

All working fine though now it keeps firing up a lot more like every couple of minutes. I spoke to the repair guy who basically said it was nothing to do with the new thermostat, see how it goes, it's a 20 year old boiler etc, wasn't really bothered as it's working.

Any ideas why it would be doing this? thanks