Hi Don, 7 flashes on this machine is a failure of the flow meter regulating the water going into the machine.It is a straightforward repair, The low meter as accessed with the left hand side panel removed.You will have to change the whole air break as the flow meter comes with it.It is not a cheap repair the air break is £65 plus vat and postage.Part no. 481241868147.Hope this helps. All the best.
FOXY, August 2008