Lowe's Home Improvement Store Refuse to Replace Appliance per Warranty Las Vegas Nevada

I purchased a Samsung refigerator from Lowe's about a year and a half ago and purchased their extended warranty.  After about ten months the ice maker in the refrigerator stopped working and I contacted Lowe's Warranty Service.  They dispatched a technician to check and fix the problem.  The technician advised me that this model Samsung refrigerator has a design flaw with the ice maker.  The cold air and warm ice mix making the ice maker freeze up.  The technician said the best he could do is try to seal the ice maker.  The problem is the whole ice unit can not be sealed correctly to prevent the warm and cold air from mixing.  The technician also told me after three complaints about the same problem Lowe's would replace the refrigerator per their warranty.  The ice maker has continued to freeze up and the technician has been out to fix it at least three times.  The last time the technician was here he recommended it be replaced.  About two days after the technician's recommendation Lowe's sent me an email saying they wanted a second opinion.  I called Lowe's asking them why because this problem has been going on for sometime.  I requested a Supervisor and she told me that the ice maker was not an essential part of the refrigerator so the replacement probably wouldn't be approved.  I spent $3000 on a refrigerator that has a design flaw but they won't replace it.  A billion dollar company and they can't replace a refrigerator that they have identified with a design flaw.