Discuss Boiler not firing up in the Central Heating Systems area at ElectriciansForums.net

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.
 
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
 
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 :)
 
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
 

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