Ah, so no indication on the fridge as it comes then? In that case I don't know if mine does the same or not lol
Mine is the MDC110 so may be an older model than yours anyway Jeff.
I don't like it warm when I am in bed so unless its really cold I will either have diesel heater off or set at lowest (4 degrees I think) which gies a room temp around 6 to 10 degrees. Whatever one does its been doing it since I got the van so can't be doing me any harm lol
View attachment 75387
Had a look at the manual and mine should work in ambient down to -10.