Recent content by zaccy

yep your right ,im replace it,thanks for your help,much appreciated

umm,this is whats happening the h3 warning comes on intermittently and when this happens the pump can be heard running ,the burner led is not lit and it can do this for 20-30 mins or so before stopping.it might not come on again for an hour or so also the hot water dosnt get quite so hot as...

hi tony, thanks for replying. just measured the resistance and its 13k ohm.trouble is ,i dont know what it should be.does this sound about right ?

hi, my boiler is flashing the fault code H3 which i believe to be the thermister (after reading forum because have no manual) anyone have any idea how to change a thermister on an ideal isar he 35 boiler please.any tips would be greatly appreciated.i think these are only about £30 so would...