Normal when loading. door open and loading with food that most certainly is not 40* or below. Might take several hours to go back down.
I have experimented with a lot of things, including where to put my temp sensor. I moved my white plastic and "thermistor" down on the top shelf side. Thermometer is right below the plastic drain pan. I have the inside fans on the cooling fins. I have 3 100mm computer fans just below the roof vent and one 200mm fan drawing air in through the lower door.
I now have balanced cooling at 34 - 37* in the fridge and -2 to +4* in the freezer. That was in Key West last week. That's with #3 on the setting.
"If the women don't find you handsome, they should at least find you handy." - Red Green