GE Refrigerator Error Code 0604

Code 0604 means the ice maker's bucket full sensor is still reading full after ice has been dispensed. The control board expects that sensor signal to change during or after a dispense cycle. When it doesn't change, the board logs 0604 and may halt ice production. Start by checking for ice jams or frost buildup around the sensor before assuming a parts failure.

The refrigerator's cooling functions will continue operating normally with a 0604 error active. The error is isolated to the ice maker system, so food storage is not compromised. However, ice production will likely be suspended or unreliable until the fault is resolved, so do not count on the ice maker until the underlying sensor or obstruction issue is corrected.

A reset by unplugging the unit for 30 seconds may temporarily clear the code, but if the underlying cause is a failed sensor, ice jam, or wiring fault, 0604 will return once the ice maker runs through another cycle. A reset is useful for confirming whether the fault is intermittent or persistent, but it does not fix the sensor or obstruction responsible for the code.

Begin by unplugging the refrigerator, removing the ice bucket, and inspecting the bucket full sensor area for clumped or bridged ice. If frost is present, allow the compartment to defrost fully, then restore power and test. If 0604 returns with no ice obstruction, test the sensor's wiring harness for continuity and inspect the connector for corrosion. A failed sensor or ice maker assembly will need to be replaced.

If the fix is simply clearing an ice jam or frost buildup, the cost is nothing beyond your time. A replacement bucket full sensor or ice maker wiring harness typically runs between $15 and $50 in parts. A full ice maker assembly replacement can cost $80 to $200 in parts depending on the model. Professional labor adds $100 to $200 on top of parts if you hire a technician.