I have the exact experience as you. I purchased the same model 58H5600 from Home Depot. The oven worked for 14 months, and not the oven burner will not light so the oven doesn't heat.
This seems like a common problem with Samsung ovens. Can Samsung provide a description of the cause and directions on how to repair this problem. Thanks.
We are sorry to hear about this. Please send the model and serial numbers to this link and we will look in to this.
Im so upset it is nye. Im hoating a huge dinner party and my not 2.5 yr old chef collection oven just stopped working!! Im so upset to hear this is a known problem. Our refrigerator has also been a pain with its ice maker. Even after we had asamsung rep come in, the problem was not fixed! Now we are out of warrNty! I will never purchase a samsung product again!