GE Refrigerator Error Code 0720

Error code 0720 on a GE refrigerator indicates an Upper AutoFill Sensor Error. This means the control board is not receiving a valid signal from the upper water-level sensor in the AutoFill system. The error is most commonly caused by mineral deposits or buildup on the sensor surface. Cleaning the sensors is the first recommended diagnostic step.

A reset alone is unlikely to permanently clear the 0720 error if the underlying cause has not been addressed. If the sensor is dirty or faulty, the code will return after the reset. Clean the sensors first, and then perform a reset to see if the fault clears and stays cleared.

If cleaning the sensors resolves the issue, there is no parts cost involved. If the upper AutoFill sensor itself needs replacement, parts and labor costs typically range from around $75 to $200 depending on your location and service provider. A control board replacement, if required, would cost more, generally in the range of $150 to $400 including parts and labor.

Start by cleaning the upper AutoFill sensor and the surrounding area in the AutoFill compartment. Mineral deposits, biofilm, and debris are the most common causes and can often be removed with a soft cloth and mild cleaner. If the error persists after cleaning, inspect the sensor wiring connections for looseness or corrosion, and consider replacing the upper sensor if no wiring fault is found.

The 0720 error is not a safety hazard in the traditional sense, but it does affect the AutoFill system's ability to operate correctly. An unresolved sensor fault could lead to the AutoFill pitcher not filling properly or filling incorrectly. It is best to address the error promptly to avoid disruption to the water dispenser feature.