Sharp SJ-S1251E0I-EU Guide D'utilisation page 12

CHAPTER -7: TIPS FOR SAVING ENERGY
Keep freezer full.
Level the freezer so that the door closes tightly.
Occasionally clean the rear of the appliance with a vacuum cleaner or paint brush to prevent an increased
power consumption.
Keep door gaskets clean and pliable. Replace gaskets if worn.
EN -11-