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Hi All I've started having issues with my Halstead Ace High and I was hoping that someone with greater boiler knowledge than I might be able to help me pinpoint the fault. After running DHW for approx 5 mins the burner cuts-out, the water runs cold and then the burner re-lights within 10s...

Hi folks I'm just wondering if someone might be able to cast any light on to a strange incident that occured with our 6-yr old Halstead Ace High boiler this evening. Up until now the boiler has been working fine, and this evening I turned the heating on and the burners fired up as...