anyone have any advice on this? My oven is not heating properly. It took 30 minutes to get to 175 degrees. I checked and the igniter came on and seemed to burn a hot color but I smell gas like for some reason the gas in the burner is not burning. Could the burner be plugged not letting it light correctly? The top burners work fine and I hate to replace the stove. The smeel of gas does scare me though. Any help would be greatly appreciated