I have been looking for a service manual for this refrigerator but can't find one. I saw a few diagrams on Appliance parts pro, but not much. It looks to me like there is no control board. Without a manual I can't tell. So without a control board I am thinking it might be the defrost timer or heater. does anyone have a manual for download. It looks pretty simple as far as the inside of the refrigerator goes. The serial number is BAO2610407 if that might help. I am wondering since this is a newer frig, only a little over a year old why there is no control board, I thought most new refrigerators came with a control board.