One of the most common service issues involves ice machines. Proper cleaning and maintenance, as outlined in your owner's manual, will save you from frustration during that big party.
A dual fuel range means that the rangetop is gas operated while the oven(s) are electric.
Convection ovens cook faster and more evenly than standard ovens. Lower your cooking temperature 10 degrees from what the recipe states for best results. Every oven is different however and you may need to tweak the temperature until you find your oven's sweet spot.