Display panel displays press start,but (by 2 users)

Firstly, and most importantly, you should never open an electronic device unless you KNOW what you are doing! There is a very high voltage shock hazard potential inside that can cause seriuos injury. I know, I broke a rib from a shock reflex that I received while servicing a unit during training.
Most generally, if you have a display and can't program or start the oven, PLEASE take it to someone who is trained to repair it.Or just replace the oven since that is cheaper than an ER visit!