After months of manually defrosting our freezer every 3 weeks, we spent the money and installed a new jazz board. Accessing the old jazz board was a little difficult, but watching you-tube helped greatly. The instructions that came with the board are not very detailed, but the big thing is to follow the steps on separating the two parts of the board to install it correctly and to know your programming code when you power up the refrigerator. Since the repair, we have not seen any frost on the coils. $175 fix is better than buying a new fridge!!