does your kuhlbox / fridge compressor make noise?

[pjstock]

though I do have one more question.

while on this short trip I notice that my fridge compressor makes noise.
It seems to kick in about once an hour, for about 2 minutes. a drone.
and then it fades and stops.
is that normal or is it something I should be investigating?

during the day it's not a problem, but overnight it is a bit annoying when trying to sleep.

Peter