GE Dishwasher Error Code 97

Error code 97 on a GE dishwasher with a 3-digit display indicates a turbidity sensor failure detected during the service mode auxiliary pump test. The turbidity sensor is responsible for measuring the clarity of the water inside the tub, allowing the dishwasher's control system to determine how soiled the wash water is and adjust cycle parameters accordingly. When this sensor fails or sends readings outside the expected range during the diagnostic test, the control board logs code 97 and flags the sensor for replacement.

The most common root cause of this error is a failed turbidity sensor, but wiring issues can produce the same symptom. Before condemning the sensor itself, technicians should inspect the wiring harness and connector leading to the turbidity sensor for signs of corrosion, pinched wires, or loose terminals. A poor connection can interrupt the sensor's signal to the control board and mimic a sensor failure. If the wiring checks out and connections are secure, the turbidity sensor itself should be replaced.

This code is specific to GE dishwasher models equipped with a 3-digit display and is surfaced through the service mode auxiliary pump test sequence. It will not typically self-clear with a simple reset because the underlying hardware fault must be addressed. Completing the repair requires confirming wiring integrity first, then installing a new turbidity sensor to restore proper water-clarity monitoring and allow the control system to regulate wash cycles correctly.