GE Refrigerator Error Code F200

The F200 code means the freezer defrost cycle ran until it hit the maximum allowed time limit without being shut off by a temperature signal from the evaporator thermistor. This indicates a problem in the defrost system, typically involving the defrost heater, the overtemperature thermostat, or the evaporator thermistor. If left unresolved, ice can accumulate on the evaporator coils and reduce cooling efficiency in both the freezer and fresh food compartments.

A power reset may temporarily clear the F200 fault, but the code will return the next time the defrost cycle runs if the underlying component failure has not been addressed. Resetting without repairing the root cause also means ice may continue to accumulate on the evaporator coils. It is best to diagnose and repair the defrost system before relying on a reset.

Repair costs depend on which component has failed. A defrost heater or overtemperature thermostat typically runs in the range of $20 to $60 for the part alone, while an evaporator thermistor is generally $15 to $40. If you hire a technician, labor charges will add to those figures, often bringing the total to somewhere between $100 and $300 depending on your location and the specific part required.

Start by inspecting and testing the three components called out in the diagnostic procedure: the defrost heater, the overtemperature thermostat, and the evaporator thermistor. Use a multimeter to check the heater and thermostat for continuity and the thermistor for a resistance value consistent with its rated specifications. Replace any component that tests as faulty. If all three test good, inspect the control board's defrost relay circuit.

The error itself reflects a safety mechanism working correctly: the control board cut the defrost cycle short to prevent the heater from running indefinitely. However, the underlying defrost failure can lead to heavily iced evaporator coils, reduced airflow, and eventual loss of proper cooling temperatures in the freezer and refrigerator sections. Food safety can become a concern if the cooling performance drops significantly over time.