I have a Samsung "machmir" refrigerator that comes with a computer which has of all the Shabbatot and chagim times for Beit Sjemesh so it knows to turn off the light and do something with the compressor when the door is opened on these days. For a three day yomtov, however, I am concerned the temperature is not high enough to keep the food from spoiling. Anyone else have this appliance and can tell me how to raise the temperature before Shabbos/chag, especially for a 3 day chag? Thanks so much. I don't want to poison anyone. IleneRBS-A