How to reset the temperature on the danby silhouette wine refrigerator

This happened to me, I found that the cooler would not go below 70 degrees because the cooler had lost its coolant or wouldn't work. I do not know, but as it was under warranty, an appliance repairman came and said that it was worth fixing, so it was replaced with in a week. Normally you would just hole the button in until the desired temperature is selected. Once released the cooler would attempt to set this temperature. If it is not, then I suspect it too is broken. Good luck.