My Blomberg dishwasher has an error code E:01 - It is due to water leaking into the machine. This has happened before and was as a result of some grit in the water shutoff valve or inlet preventing it from closing properly. It there a way to override the error without calling a repair man as the grit usually moves once machine is turned on & lets water in. I can't turn on the machine at the moment due to the error message. Any ideas??