Signs such as unusual noises emanating from your refrigerator or uneven cooling can indicate that it's time for a professional inspection to prevent potential spoilage of food and Appliance service company energy inefficiency. Similarly, if you notice that your oven takes longer than usual to preheat or Appliance service company fails to maintain consistent temperatures while baking, this could jeopardize meal preparation and require immediate attention from a qualified Appliance service company technician.