Hi Kevin, I had same problem, I removed the plastic container on right hand side of machine, it is for water inlet, my one had loads of scale build up on the lower right hand side, when it fills up to much it over flows through the square holes into flood device, I cleaned all the scale with a small piece of wire & rinsed it through, it has been working fine since being used every day, I also dried all the float chamber were the anti flood device is, hope this helps
Robert
Robert Wilson, July 2009