GE Dishwasher Error Code Turbidity Sensor High Signal

This error means the turbidity sensor, which monitors how dirty the wash water is, has returned a count greater than 65,279 within a 0.4-second window. That reading is beyond the valid measurement range and indicates a sensor fault rather than an actual water condition. The dishwasher triggers this code to alert you that the sensor circuit needs inspection before normal operation can continue.

Running the dishwasher with an active turbidity sensor fault is not recommended. The control board relies on sensor data to manage cycle timing and water usage, and an invalid sensor reading means the appliance cannot regulate the wash cycle correctly. Continuing to operate it could result in poor cleaning performance or unintended cycle behavior.

A reset may temporarily clear the error code, but if the underlying cause such as a contaminated sensor, damaged wire, or faulty sensor component is not addressed, the fault will return. It is best to inspect and resolve the sensor or wiring issue before relying on a reset as a solution.

Many cases can be resolved without professional help by cleaning the turbidity sensor lens and reseating the wiring harness connectors. If those steps do not clear the fault, replacing the turbidity sensor is a repair many experienced DIYers can handle with basic tools. If the wiring or control board is involved, a technician may be needed for accurate diagnosis.

If only the turbidity sensor needs replacement, parts typically range from $20 to $60 depending on the model, with professional labor adding $75 to $150 or more. If the issue is a wiring repair, costs are generally on the lower end. Control board replacement, if required, is significantly more expensive and can range from $150 to $400 or more for parts alone.