We have a model number 1155 bread machine, and the problem is it wont complete the bake cycle. The bread is not finished baking for 1 and 1/2 lbs of bread should the baking time be. i have baked it at 3 Hours and 40 Minutes and it is still not done. Is this normal or is there a problem with the machine. We can't find our model number which is 1155 on the chart. is there still a manual available. Thanks, Don Seaandskies@aol.com