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Just in case anyone else has the same problem, although pretty specific this one! Turns out that the issue was with the flame sensing. With a low flame the sensor was producing sufficient voltage to keep the burner on, however as the flame increased the tip of the sensor was actually in a...

Hi all, First time posting. I've searched through forums but am still at a complete loss so any help would be massively appreciated! My 6 yr old Glow worm 30C is not providing heating or hot water for more than 40s before the burner switches off, goes through a purge cycle and then...