Reverse Polarity blow PCB? Worcester boiler with overun

[Robinson]

lucky to get away with reversed polarity not killing the pcb,if it was a baxi new board time

REALLY , gosh i did worry this would of happened..What actually happens to pcb if fried , i mean does it just not fire or could it just be certain functions not work...cos i mean it all seems to function a ok. but maybe there some elements to system i not aware of that been damaged...would hate to leave customer with a issue that should of been attended to now.....i not a bodge it a scarp per type guy... I break i pay .....

 

[Robinson]

Out of interest Are biasi same story....they nothing to do with baxi are they?

 

[gas man]

REALLY , gosh i did worry this would of happened..What actually happens to pcb if fried , i mean does it just not fire or could it just be certain functions not work...cos i mean it all seems to function a ok. but maybe there some elements to system i not aware of that been damaged...would hate to leave customer with a issue that should of been attended to now.....i not a bodge it a scarp per type guy... I break i pay .....

normally reversed polarity effects the detection /ionization circuits so it generally wont detect ignition and go to flame failure sounds like no damage has occurred to your pcb

 

[gas man]

Out of interest Are biasi same story....they nothing to do with baxi are they?

yes most boilers suffer the same way,and no biasi are not related to baxi most boilers will have a Honeywell, Siemens,thermowatt pcb honeywells prone to damage with reversed polarity Siemens not so honeywells can sometimes get a soaking,dry out and work,where as Siemens die instantly with the last brand thermowatt just looking at that one will cause it to burst into flames LOL most aristons have this make

 

[Robinson]

phew. !

 

[Robinson]

Yeah i had a job before which the building contractor tryed to stuff me, in fact has stuffed me for a whole load of dosh because he said i fried pcb...WHich is utter tosh. all i done was put a programmer and stat on...it was a combi biazi......But i know for a fact they has serious water leaks just by the boiler into the boiler...anyway the boiler worked fine straight of i done my job , but the Summer mode will not work and he said its because i fried it...the case is still on...i want full dianostic from biasi and fact it was a brand new boiler and he got a dodgey NON biasi engineer out to sort it(or not) is not my prop, tyring charge me for the call out fee of this bloke too....where it all should be under warrenty...

any thoughts

 

[gas man]

tell the building contractor to rotate he is not a gas engineer,water leaks are the likely cause of the pcb damage,tell him to prove you have damaged it(he cant they are very difficult to test)see if hes prepared for you to get a gas engineer mate take a look if he wont allow you to do this he is not letting you get all the facts so its your word against his,any way whats his problem if its in warranty?just get biasi out