Water leak fault does not have to mean it is leaking on to the floor. It means that the water level has dropped. This can be caused by it syphoning water out of the drain hose. Make sure drain hose comes up as high as the top deck before going down to the drain. Also, if the drain hose goes in to a standpipe or other tight outlet make sure hose is not pushed too far down into it. There has to be room for the airlock to release the suction. As for the not starting, it could be a main board fault or display board fault. You need to get someone out to check and swap boards until they find the fault.
Lincoln Appliance NZ, March 2012