1) Keep it clean
Clean the shelves and other parts at least once a month. Use vinegar to keep the interiors free from mildew.
2) Keep it full
Don’t overload it but keep it full. Always keep in some bottles of water while you are on vacation.
3) Keep inspecting
Check the seals, wires, and temperature panel for any damage or leak. Precaution is better than cure.
4) Keep it checked
Get an expert to check the essential parts, such as evaporator, the fan, and the condenser. This practice will ensure a healthy life for the fridge.