When you lower the lid slowly, can you hear the lid switch click. Should happen about 20mm before lid is fully down. If no click then lid switch is not operating and machine will not start. It is either not in correct position or needs adjusting. Small adjusting nut at top of out of balance lever. Other possibility is the wiring harness which plugs in to underneath of control panel may be not making a good contact
Lincoln Appliance NZ, December 2008