I have a GE Profile PB975SP3SS electric oven that stopped working. The control panel and lights work but neither the stovetop nor the two ovens heat up. There might have been a power outage over the weekend since the clock is behind by a couple of hours. I switched the breaker fuse off and on but that did not help. What can be wrong? Does this oven have a central fuse? Easy fix or should I start looking for a new oven? Thank you!