The one (1) year of warranty period commences upon the date of purchase. WooriKooli will have no obligation to replace/repair the product if the warranty is expired or if the product becomes defective because of the following:

1) Defect is attributed to the user's mistake or is caused by:

-arbitrary disassembly or reorganization;

-repair done by someone who is not one of our designated engineers;

-the use of nonregular parts or accessories.

2)Defect is caused by other reasons such as:

-an act of nature (damage by fire, brine, storm, flood, lightning, etc.);

-the expiration of expendable parts (terminals and various attachments);

-failure to properly follow the manual, or nonconformance with instructions.