GE Dishwasher Error Code F52

F52 means the dishwasher's control board ran a calibration check on the turbidity sensor and the check failed. The turbidity sensor monitors water cloudiness to guide wash cycle decisions. The code points to a wiring problem, a dirty or obstructed sensor, or a failed turbidity sensor that needs replacement.

The dishwasher will typically not complete a normal cycle while F52 is active because it cannot calibrate the turbidity sensor. Running the machine in this state means the control board cannot adjust the wash cycle based on water clarity, which can result in poor cleaning results or the cycle stopping partway through. It is best to resolve the error before relying on the dishwasher.

Cutting power to the dishwasher for a few minutes can temporarily clear the F52 code, but if the underlying problem with the turbidity sensor or its wiring is not fixed, the code will return when the control board attempts calibration again. A power reset alone is not a fix for F52.

Start by disconnecting power to the dishwasher, then locate the turbidity sensor and inspect the wiring harness and connector for damage, corrosion, or loose connections. Reseat any loose connectors and check the sensor lens for buildup and clean it if needed. If the code returns after restoring power, replace the turbidity sensor. If the new sensor does not clear F52, the control board may be the issue.

A replacement GE turbidity sensor typically costs between $20 and $60 for the part. If you do the repair yourself, that is the main expense plus any connector repair supplies. A professional appliance repair technician will add a service call fee and labor, bringing the total to roughly $100 to $200 depending on your area and the specific model. The repair is relatively accessible for a DIYer comfortable removing a dishwasher's lower assembly.