I have a samsung rs261mdwp that is not cooling on fridge side but the freezer side is working. Tried unplugging, waiting and plugging back in. I hear ticking from board and fridge turns on. The fan works on the bottom by the compressor, the compressor is warm to hot. One of the lines from the compressor is kinda cold and the other is warm. When I opened the panel where the motherboard is it smelled burnt. Normal?? I have removed the ice tray and the backing in the freezer to get to the thermistor and checked-5 ohms and when placed in hand goes down, the thermistor in the panel for at the top left of freezer has same numbers 5.?? and goes down when held in hand. When I removed the backing in the freezer section the ice build up on the front and behind the plastic panel was a lot. The coils and Thermistor was covered in ice. I am at a loss of what else to check at this point. Could it be a starter relay or the motherboard. I don't have the money the purchase a new fridge let alone pay some guy to check it out and then jack the price of his service call and the parts. Any help would be appreciated. to add the compressor is making a humming noise. I now have the freezer apart and have access to the upper thermistor, lower thermistor. I have the lower panel on back open to see compressor and the mother board open to troubleshoot there as well. I can send pics and video if necessary.