56TROUBLESHOOTING4-1-7. Option setting function• If Lighting Key + Fridge Key are pressed simultaneously for 12 seconds during normaloperation, fresh food and freezer compartments temperature display will be changed tooption setting mode.• If the display changes to option setting mode, all displays will be off except freezer and fridgecompartments temperature display as below.(Fresh food and freezer compartments case will be explained only because all options areoperated with the same method according to the option table.)If Lighting Key + Fridge Key are pressed simultaneously for 12 seconds, option setting mode willbe started.KEY operation method for changing to option modeKEY control method after converting to option modeKey control in option modeCode DownCode Up Reference ValueUp keyCode ReferenceValueReference Valuedown keyFreezer Key Code Down keyLighting Key Code Up keyFridge Key Reference Value down keyAlarm Key Reference Value Up key
