Miele Dishwasher?

Started as a sporadic fault. Checked the drain pump impellor as the manual suggests, cleaned the filters, and pressed a combination of start/stop and on/off buttons but the machine stopped altogether and the inlet/drain warning light wouldn't go out. After leaving the dishwasher for 5 days as a last resort I proceeded to pull the dishwasher a couple of cm's out from its position. On starting the machine it began its wash cycle with no inlet/drain light on. My Miele is now working and I'm about to cancel the repair man. Can anyone tell me what got my dishwasher working again???