I just wanted to confirm that the ecb is the problem in my refridgerator. If I plug it in it works fine, but after 2 or 3 days it stops cooling. It runs constantly when plugged in. I also wanted to confirm part # for electronic control board. AP4137435
Based on this information it sounds like the control board may be the issue but you will also want to look to see if the evaporator is impacted with ice and check the sensors in the unit to make sure that they are good as well. The PBA is part number DA41-00134F.