Missing segments in LED fridge display
This is likely a design flaw that needs to be adressed by the manufacturer. LED displays like these, when not mistreated should last for 50000 hours continuous illumination (5.7 years) at the least, when no cost or corners are cut that number goes all the way to and/or beyond 200000 hours (22.8 years of always on for each LED).

Either the module is so cheaply made that moisture can  creep in and permanently damage the chips, or there are mechanical stressed damaging bond wires, or, etc etc etc.

Proper modules are cast in the right kinds of resin for the use they are made for, this one isn't. That's all there is to it.