You should have had it looked at when it was stopping before. That problem was probably the drain pump overheating and shutting off the power until the pump cooled down. If the power will not come back on now then either the drain pump has failed completely and fitting a new drain pump may fix it. However, there is a high possibility that the drain pump has now damaged the control board and if so that will also need to be replaced. Don't go buying both parts as you may not need both. Probably cheapest way is to get a service company out who will test and tell you which part you need.
Lincoln Appliance NZ, November 2012