Freezer cold but refrigerator warm; ice buildup on rear freezer wall; fan noise may be loud or intermittent.

Safety: Unplug the appliance before defrosting or accessing internal components.

Steps:

• Manual defrost: Empty the freezer, open doors, and allow all ice to melt. Place towels to catch water. Do not chip ice with sharp tools.
• Clear drain: Locate the defrost drain hole under the evaporator and flush with warm water using a turkey baster to ensure it is clear.
• Inspect heater and sensor: Remove the rear panel, visually inspect the heater and wiring, and test for continuity with a multimeter.

If frost returns within days, the defrost control on the main board may be faulty and should be checked by a technician.