GE Refrigerator Defrost Heater & Harness (WR51X39386)

The GE Refrigerator Defrost Heater & Harness works together to melt frost that builds up on the evaporator coils during normal refrigerator operation. The heater element heats the coils at set intervals while the harness carries electrical current from the control board to power the defrost cycle. Together, they keep the coils clear so cold air can flow freely and maintain proper temperatures throughout the refrigerator and freezer.

The GE Refrigerator Defrost Heater & Harness can fail from age, repeated heating and cooling cycles, or corrosion on the wiring connections. A burned-out heater element or damaged harness wires will prevent the defrost cycle from running, allowing frost to accumulate on the coils and block airflow to the rest of the refrigerator.

These symptoms can help you decide if the defrost heater or harness is the source of your problem:

- Excessive frost or ice buildup on the back wall of the freezer compartment

- Refrigerator or freezer not staying cold enough

- Food spoiling faster than usual despite normal thermostat settings

- Visible ice covering the evaporator coils behind the freezer panel

- Refrigerator runs constantly without cycling off

- Unusual warming periods followed by refreezing of items in the freezer