I have found that some things take longer with my convection oven and some things take less time. I just baked a coconut pie and it took 10 minutes longer. I would get a good oven thermometer and see just now accurate your convection oven is. Mine is 50 degrees cooler than the set temperature. By the way, we are on our 3rd Dometic convection/microwave in less than 18 months, all replaced under warranty. One would not even get close to temperature, one just stopped working during convection preheat, and this one seems to be hanging in there for the moment. If it fails after the warranty expires, we will be getting a different brand. You do not get a new warranty period from Dometic when you get a new convection/microwave. The warranty is based on the original install. After complaining loudly, we were able to get the warranty extended by a year.
