Our 6 month old Jotul f600 is sucking in air from the seem in the top right corner between the front and side plate. I held a lighter next to it and it sucked in the flame pretty good. I thought things were burning faster than they should have and I guess I found the reason. We haven't experienced temps that are extremely high - 600 on a full load isn't uncommon with the air shut down all the way, but it sure heats up in a hurry. Any suggestions on what to do about this - or the cause? Is there a quick fix, or do I need to get in touch with the dealer?