This fridge came with an explanation of the sounds it makes
With every new fridge comes a new variety of weird noises to keep you awake at night – so this one comes with a leaflet that explains the difference between SSSRRR and BLUBB.
It’s not as pointless as you might think. Epsilonzer0 writes, “Worked in an appliance repair shop, based on the amount of stupid “noise” calls we would receive after a new fridge install, I can confirm that every fridge should come with this page.”
Apparently it’s not a new innovation – here’s one that compares a fridge noise to a frogman.