A customer reported that their monogram built-in refrigerator was not cooling properly. Upon inspection, I identified that the refrigerator's cooling system was functioning correctly, but the door seals were compromised due to worn-out hinges. I replaced the faulty door hinges to ensure a proper seal, which should restore the refrigerator's cooling efficiency. The refrigerator was tested to confirm that the cooling issue was resolved. The customer was pleased with the outcome and reported that the refrigerator was cooling as expected.