WHAT IWANT TO KNOW IS IFANYOF YOUR CAN TELL ME W HY MY BOILER ISNT WORKING BEEN PLAYINGUP ALL YEAR SINCE LAST WINTER IT PACED UP IN FEBURY AND DID A BIT OF HOTWATER AFTER THAT WHEN I WIGLED THE TAP ON AND OF BUT I HAD TO USE THE IMERSION MOSTLY SUMMER ROUNDABOUT JUNE NOW TUREND COLD I CANT GET...