We have a Frigidaire LGHS2667KE0. I’m not an appliance technician. Our refrigerator was not working. We were getting an error code SY CE on the front control panel. I tried unplugging it for about an hour and plug it back in. The refrigerator would cut off and on for about 30 seconds, shut down and beep leaving me with the same code. I called an appliance repair technician who pulled the main board from the front bottom of the refrigerator. He believed it was a relay and or the compositors on the main board that went bad. He wanted to replace the board for $300.00 dollars, Part Number 5303918498. I decided it was easy enough to do it myself. We bought the main control board from a local appliance store. I came home and hooked it up and the refrigerator did not power on. The front display panel didn’t even come on. I brought it back thinking I received a faulty part. I got the part replaced and hooked it up. Nothing happened. After reading a few posts, we decided to try changing the front display panel, Part Number 241973711. I changed that out and used the old “original” main control board. It did the same thing as before. However, this time it would stay on if I had the freezer door open. So I kept the new display board in and hooked up the new main control board and wallah! It worked. Pay attention, new main control board with old display panel did not fix it, didn’t even power up. New display board with old main control board did not fix it, it did power on with code error code. New main control board with new display panel fixed it. This makes me believe that the new control board does not work with the existing display panel. The new control board is not exactly like the one that came with the refrigerator.