ariston eurocombi A/27 MFFI?
I HAVE A PROBLEM OR TWO IN SUMMER MODE MY RADS COME ON I,VE BEEN TOLD IT COULD BE FAULTY DIVETER VAVLE OR DIA.ALSO MY PRESSURE READING GOES UP TO 4BAR SOME TIMES BEFORE THE PRV KICKS IN .MY BOILER WAS PURCHASED NEW ABOUT 3 YEARS AGO CAN ANY ONE HELP .I ALMOST FORGOT I TRIED TO PUT AIR IN THE EXPANSION VESSEL BUT IT WOULD NOT RISE ABOVE HALF PSI COULD IT BE BURST?.
paul powell, January 2005