Ice buildup on the back wall of the refrigerator or freezer; fan noise becomes loud or stops.

Safety first: Unplug the refrigerator before defrosting or testing components.

Step 1 – Manual defrost:

• Unplug the unit and open doors.
• Allow 24 hours for all ice to melt; protect floors from water.

Step 2 – Check door gaskets:

• Inspect Door Gaskets for gaps or damage; replace if not sealing properly.

Step 3 – Test defrost components (advanced):

• Remove interior rear panels to access evaporators.
• Test Defrost Heaters, Defrost Sensors, and any thermal fuses for continuity and correct resistance.
• Replace any failed components.

Step 4 – Monitor operation:

• After repairs, allow the unit to run for several days and check for recurring frost.

Note: If frost returns despite good components, the Main PCB may not be initiating defrost cycles correctly and should be checked by a technician.