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could anyone offer some advice here. went to do landlords. a day before ,the tenant could turn off central heating without turning off mains. did the landlords and going back in twodays. potterton puma 80e. hotwater fine but ch on constant even though stat, program and ch switch on boiler is...

just did a one day course at honeywell and forgot to ask the chap==== on hotwater only on mid position valve why is the orange wire live when all is required to fire up boiler and pump is cylinder stat on demand. thus it doesnt matter if the vlave/motors are broken for h/w demand as the valcve...

hi chaps. slowly getting into fault finding but i am baffled at something. if t a combi fires up ok then shuts off the fires up again etc etc where on earth do you start fault finding? if the boiler stopped at sparking then you would look at ignition/ and ignition proving. i just dont know...

on some boilers kilowatts of the power is noted in Q and P? what does this stand for?

need some advice on boiler stat measurement. getting into repair side of things som just wanna be sure. boiler stat if its simply gone ie not turning on at all its just no buzz, no ohms on multimeter? however say on a profile or puma how do you know if a boiler stat has lost calibration ie not...