We had a blackout and the clock and auto sign were flashing when the power came back on. As per the manual turned knob to hand/clock sign and pushed in, played with the - /+ knob & clock stopped flashing but the auto word is still flashing. Tried pressing the nob at the hand/clock sign but nothing. As a result the cook symbol hasn't come on & we can't use the oven. What should I do? We have at this problem before, but we've been about to get it to work within 5 mins or so.