Do not forget maintenance of your refrigerating appliances!
If you want your refrigerating appliances to work in a long term, the maintenance has to be done at least two times a year. Air circulation and cooling functions may be hindered by dust on the cooler grate.
If you are doing maintenance works by yourself, use a vacuum cleaner or dust brushes. However, it is always better to contact professionals who will not only clean dust, but will also check cooling systems and diagnose existing or potential leakages.
Only if maintenance is done on regular bases, you will avoid malfunction of equipment and, even if problems occur, you will be able to use manufacturer's warranty.