Display shows E5 and the refrigerator may not defrost properly, leading to ice buildup and warm temperatures.

Safety First: Unplug the refrigerator. The defrost heater operates at mains voltage and can be hazardous.

Steps:

• Access evaporator and heater: Remove freezer shelves and the rear interior panel to expose the evaporator and defrost heater (usually a metal or glass-encased element at the bottom or woven through the coil).
• Visual inspection: Look for breaks in the heater element, burnt spots, or disconnected wires. Check the defrost thermostat/thermal fuse (often clipped to the evaporator tubing).
• Continuity test: With the unit unplugged, disconnect the heater leads and measure continuity with a multimeter. No continuity indicates a failed heater.
• Check defrost thermostat/fuse: Test continuity across the thermostat/fuse at freezing temperature. An open reading when cold indicates a failed safety device.
• Replace failed components: Install a new Midea-compatible defrost heater and/or defrost thermostat/thermal fuse as needed. Ensure all connections are secure and insulated.
• Reassemble and test: Reinstall the evaporator cover, restore power, and monitor for proper defrosting over the next 1–2 days.