Hi foxy,
many thanks for your reply, have tried your suggestion to no avail. When i held down the start button the start/stop indicator light flashed, not the program light. Also you would normally change the water hardness settings by holding down the program button and this does not respond either. Double checked the switch on the pcb and it works, so i think your correct and will need a new pcb. Best get shopping on-line for the best deal, once again many thanks for your efforts
tony, November 2008