Stephen L Washington , DC May 27, 2018 Appliance: General Electric Refrigerator GTS16JBRFRWW Ge Refrigerator Gts16jbrfrww: GE refrigerator freezer was cold but refrigerator was warn (because ice blocked duct) i e defrost apparently not working). How to replace Duct Foam. Replaced defroster thermostat (following steps in AppliancePartsPros video) Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes