11-30 L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUALSTORAGE CHAPTER 11: MAINTENANCE11Customers are responsible for shipping costs to the factory, regardless of whether the unit is under warranty.• Fax a copy of the shipping information to the GE Grid Solutions service department in Canada at +1 905 927 5098.Use the detailed return procedure outlined athttps://www.gegridsolutions.com/multilin/support/ret_proc.htmThe current warranty and return information are outlined athttps://www.gegridsolutions.com/multilin/warranty.htm11.15 StorageStore the unit indoors in a cool, dry place. If possible, store in the original packaging. Follow the storage temperature rangeoutlined in the Specifications.11.16 DisposalOther than the battery, there are no special requirements for disposal of the unit at the end its service life. For customerslocated in the European Union, dispose of the battery as outlined earlier. To prevent non-intended use of the unit, removethe modules, dismantle the unit, and recycle the metal when possible.To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energizedstate once per year, for one hour continuously.