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[/b] Thats what Im like anyway, im forever asking people questions, I can never know enough!!!

:? Jeez.............I have got a lot to learn....... But seriously, if you had everything disconnected and it was still blowing, surely you'd just replace the pcb. Would you really waste all of that time trying to figure out which resistor or capacitor had blown.......or would you?

Good idea........do you boys really do things like that then? Any other handy little tips? Ideally Id like to spend every Saturday with one of you boys, showing me little extras and tips. Id even pay you £50 a day for the privelige

But that was my original point. Wont it vary from boiler to boiler? Surely youre not meant to memorise the resistance of every component on every boiler?

I just said I know how to use one

I know how to use one thanks Davey

It must be just the people on this site that know everything about everything, because ALL of the people I come into contact with (self employed, and have been for many many years) dont know how to test electrical components, hence why im asking on here Well done guys, hope someday I will...

This type of answer is so annoying!!! Like im going to stop working on boilers because you dont think I know enough. How is your answer going to help? Surely the best thing to do would be to assist me?

Thats how Ive been shown, but say it wasnt blowing the fuse, but blowing the actual board instead. It would become an expensive job before you found the faulty component!! I mustve been lucky so far because Ive come across 3 blown fuses in pcb's, and just replaced them and the boiler has...

But what readings should I be getting when checking resistance. Doesnt that vary from boiler to boiler?

Just read a thread on here about a boiler blowing fuses. What sequence would you guys go through if you were to encounter this problem? What it be a case of unplugging components (pump, fan, gas valve) until the fuse stops blowing, or is there a more technical way? Thanks

But the partsarena site says the puma 80 PP pcb is the same as the Combi 80 pcb? So what board goes on a combi 80.....the puma 80E or puma 80pp? The fella in hrpc also said the puma 80pp, is he wrong?

Also just noticed this on gaspartsarena site The part numbers for the puma 80 and combi 80 pcbs are the same? I thought the combi 80 pcb would be the same as the puma 80E pcb, as they are both electronic pilot? But the full sequence control boards have the same part number? Is that...

Excellent thanks a lot guys!!! May sound stupid but Ive never had to anything like this before, so how would I go about replacing the harness? Is it fairly straight forward? Thanks again

Ok so....... Also, what do you mean by using a chocolate block single connector for just that pin? and....... Would that pin (furthest to the left of P1) not touching the board stop the board from functioning? Thanks

wtf?

Think Ill go for the safe option!!! :D Do you think this is the sort of part that would be on the shelf?

That was my original question..........so I can buy a new connector then?

I have put a new board in, but the connector block (PL1) that plugs onto the top left of the pcb is slightly scorched and has the inner metal strip missing. Hence my question!!! :D