twin gas oven (small top oven/grill, larger oven below).
For a while now, the top oven lights fine, but after a couple of minutes the ignition starts repeatedly clicking, even though the oven is on.
Opening the oven door for a second seems to correct the problem (which we discovered, because we opened the door to see if the burner was lit (it is) and the clicking stopped.
Bottom oven is fine.
Is it likely I've managed to smear dirt somewhere critical when cleaning ?