Freezer was running warm

You guys ought to win some sort of website Emmy. I found your site as I was searching for a new motherboard, thinking this was the cause of the temperature control problem. I took the time to go through the little diagnostic process you offer and I discovered that the much less expensive defrost thermostat was more often the root cause of the problem ($8 vs $160 for the new motherboard). The part arrived within 3 days and the installation video was enormously helpful. Removal of the rear panel was more difficult than suggested on the video. I'd suggest removing the freezer light fixture before trying to remove the panel as it is nearly impossible to bend the metal panel around the light bulb bases. Anyway, the whole job cost me about $16 for parts and delivery and the fridge is running fine. The combination of the diagnostic tool and the installation video were fantastic...far beyond expectations.