GE Refrigerator Error Code F655

F655 means the freezer icemaker mold heater is not producing enough heat during the multi-fill cycle. The control board expects to see a temperature rise of at least 3°F within 90 seconds after the heater activates. When that threshold is not met, the board logs F655 and stops the ice harvest process. The most likely causes are a failed heater element, a bad thermistor, or a wiring issue in the icemaker circuit.

F655 is not a safety emergency. It indicates a functional failure in the icemaker heating circuit, not a risk of fire or electrical hazard under normal circumstances. The refrigerator will continue cooling, but the icemaker will not produce ice reliably until the fault is resolved. You can continue using the refrigerator while scheduling a repair.

A power reset may temporarily clear the F655 code from the display, but the error will return if the underlying problem is not repaired. The control board triggers F655 based on real-time performance data from the thermistor during each icemaker cycle. Without fixing the heater, thermistor, or wiring, the fault condition will recur the next time the multi-fill algorithm runs.

A knowledgeable DIYer can diagnose F655 by using a multimeter to check the mold heater resistance and inspect wiring connections for corrosion or damage. If the heater element or thermistor needs replacement, those parts are generally accessible with basic tools. However, if the icemaker module itself is faulty, replacement can be more involved, and a technician may be advisable if you are not comfortable working with appliance wiring.

Repair costs depend on which component has failed. A replacement mold heater or thermistor typically costs between $20 and $60 for the part alone, while a full icemaker module assembly can range from $50 to $150 or more. If you hire a technician, expect to add labor costs on top of parts. Diagnosing the specific failed component first helps avoid unnecessary part replacements.