Possibly a loose wire? I am not familiar with the layout on the KC Combo and don't know how accessible the wires are but check and see if they are fully connected. Could be the igniter and they are a pain to change. Not to mention unfortunate on a new grill.I have a KC combo I bought in march. It starts up just fine, but during a cook, it will all of a sudden give me a Err code with the igniter rod flashing. Pit Boss tells me it is the igniter so i am going to try to change it out. My problem is it works fine for a while, then stops? Any thoughts?