you have been most helpful in making me understand the workings. the temperatures seem to be ok, but it might be a little warmer than usual. if the defrost cycle were stuck on, the frozen foods would not be frozen anymore, but they are. the compressor seems to be cycling properly, ice being made, etc. it is just the evap fan stuck on. i really do not wish to buy an entire control board to repair this. is it ok to just let it run and not fix it? i have a/c motors in my pellet stove, and one that circulates the warm air into the room from the exchanger runs the whole time the stove is on, for many years. thanks, Michael from Precision Remodelers

thank you. i will do that. i can't imagine the fan uses much powera anyway. it is just annoying to have trouble with such a new and supposedly high quality piece. how about Bosch 5800U (i think that is the model) five year old dishwasher not completing its cycle, showing 1 minute left, stays that way indefinately, washing and washing, not rinsing out the soap until i shut it down, and restart it. then it goes to 13 minutes and completes, all the way to "CL" and stops.