As stated before is my igniter on my DB prime quit working. It was an older metal one. They sent me a new igniter which was ceramic. Easy job right? I took out the old igniter and tried to install the new ceramic and it would not fit in the hole! I tried for an hour thinking is was me. I got ahold of GMG support and they said it should fit but it doesn't. I know they are thinking this guy is doing something wrong. Anyway, I measured the old igniter and it was .378 inches and the new one is .422 inches. Well that's a problem. Support said maybe the sent a mis-machined igniter and sent me another. I got the new igniter and it measured the same. So now I took it all apart I took the auger, igniter tube and firepot out. The igniter tube just pushes on the firepot nipple so that was not it. I tried to push in the igniter into the firepot which was in my hand and it didn't fit. I put the igniter in the opposite direction and it fit fine. What I found was there was a slight burr in the firepot opening for the igniter. Small enough for the old hot rod but too big for the new hot rod. I took my Dremel tool and removed the burr. I put the grill back together which was a pain in the xxx. 2.5 hours later is all good. Moral of this story is ?