The wires that connect to the burner are very thin, solid wire, and break very easily. You can break one just by cleaning the catch tray under the cook-top. I had one go out after a few months, and my dealer gave me a new one under warranty. About a week later, a second one went out. I've been using a BBQ lighter since then. I suspect that's the problem with yours. If you put you hand along the wire in just the right spot, you can actually "feel" the spark at the break point. I've checked at several RV dealers, and no one seems to carry them in stock. Can't imagine why, since they break so easily. I did check out Amazon, and found a 3-pack for about $12 + change.
Hope that helps!