We just spend about 2 1/2 weeks in the Rocky Mtns at 7 to 9 thousand feet. Our refrigerator worked fine. When we came down from the mountains, the refer would not cool below 60 degrees sometimes 54 at night. It did this for two days, prompting me to make an appointment to have it looked at. Then on the second day we were off the mountain traveling back it began working normally again. Has anyone seen this happen before and is there an explanation.