HI,
CAN ANYBODY HELP.
I'VE JUST REPLACED THE DIVERTER VALVE, ON A IDEAL ISAR HE 35 ,FILLED THE SYSTEM AND TURNED IT ON.
TURNED THE DHW ON AND IT RAN FOR A SHORT TIME THEN THE BURNER TURNED OFF THEN RELIT THEN OFF THEN ON.
AFTER ABOUT 5 OR 6 TIMES THE BOILER STOPPED AND THE BURNER LIGHT...