Display shows E8 and the unit fails to maintain set temperature, often running continuously.

Safety first: Unplug the unit before accessing the evaporator area. Water from defrosting ice can create slip hazards; use towels.

Steps to diagnose and fix:

• Check for heavy frost: Remove interior rear panel and inspect the evaporator coil. A solid block of ice indicates defrost failure.
• Manual defrost: Leave the unit unplugged with doors open until all ice melts. Do not use sharp tools to chip ice; this can puncture refrigerant lines.
• Test defrost heater: Locate the defrost heater element attached to or beneath the evaporator. Disconnect its wires and measure resistance with a multimeter. A typical heater will show low resistance (e.g., 20–200 Ω). Infinite resistance indicates an open heater that must be replaced.
• Check thermal fuse/thermostat: Many BODEGA models include a thermal fuse or defrost thermostat in series with the heater. Test for continuity; an open device must be replaced with the correct part.
• Inspect defrost sensor: Verify the evaporator/defrost NTC sensor is properly attached and within specification (see E4). Replace if faulty.

When to call a professional: If heater, fuse, and sensor test good, the main control board may not be initiating defrost and should be diagnosed by a technician.