There is a possibility that the flame can be adjusted depending on the model of the range. You could also have the wrong orifices in the burners. If the range is supplied with Propane but was not properly converted, this could cause the problem that you are describing. I recommend that you resubmit your question with the full model number of your KitchenAid range. The model number is either around the opening of the oven (pull open the oven door to view this area) or it could be on the base of the range in front of the right or left front leveling leg (pull out the bottom drawer if it has one to view this area). With the full model number and the type of gas that it is using (natural gas or Propane), we should be able to provide information that can help you troubleshoot this issue.