Operating the refrigerator compressor in below freezing temps can hurt it. Turn the refer off when in storage with some baking soda to absorb any food odors.
I know, lots of folks keep a beer box in an unheated garage all winter but those compressors are typically older designs and are a little heavier built.
Life is a journey, not a destination.
2005 Georgetown 359ts
Bill & Virginia, Kentucky
Nights camped in 2011...78 , 2012...73,
Nights camped in 2013...123, 2014 ...101