My built-in dishwasher G679SC has leaked a small amount intermittently for several years, now leaking very often, but not when engineer is present. He has checked through for faults on his diagnostic programme, checked all seals, water and detergent level settings, etc.etc. plus the door shutting position. I have tried reducing the detergent level to the lowest level. Has anyone else had this problem?

Cynthia James, March 2010