Opened freezer door and light didn't come on. Then I noticed that it wasn't as cold as usual which seemed like it lost power. After verifying that the plug had power, I started removing the control board from the front of the door. As I was removing it, the freezer started running again, but the board had weird characters on it and it never read the correct temperature. I ordered a new control board from Appliance Parts Pros and installed it. During the 3 days that I was waiting for the new board, I would check the freezer a couple of times a day and the display would occasionally be blank. I would unplug the freezer or wiggle the board to get it back on. The food thawed a bit, but not completely. After replacing the board, the freezer ran as expected for about a 10 days. Now, every morning the hi temp alarm is going off and reads a temperature typically around 80F. After resetting the alarm, the temp on the display drops to 30f-40F. All of the food in the freezer is frozen solid and there is cold air coming out of the vent. Which parts should I buy next?