Google is your friend. A simple search for Indesit dishwasher fault codes brought up the answer in seconds. Fault code 1 is flood switch activated. Water has leaked in to the base. Pull dishwasher forward and tip it backward and see if water comes out (put some towels down at rear to catch the water. Once all water is out fault will clear and dishwasher will work. If it comes back again then you will need to find out where the water is leaking from.
Lincoln Appliance NZ, November 2014