GE Dishwasher Error Code PrS

PrS means the control board has detected a critical failure in the pressure sensor circuit. The pressure sensor monitors water level in the tub, and this code appears when the board cannot get a valid reading from it. The dishwasher will not run until the fault is cleared.

No. PrS is classified as a critical fault, and the dishwasher will not operate while this code is active. Running a dishwasher with a failed pressure sensor would also be unsafe because the machine cannot monitor water levels, creating a risk of overfilling. The fault must be resolved before the unit can be used.

Reseating the harness connectors and visually inspecting the wiring is well within reach for most DIYers and requires no special tools. Testing harness continuity requires a multimeter, which is a basic tool. Replacing the pressure sensor involves accessing the inside of the dishwasher and unplugging a connector, which most homeowners can handle. Replacing the control board is more involved and may be better left to a technician if you are not comfortable working around appliance wiring.

Start by unplugging the dishwasher, then unplug and firmly reseat the wiring harness at both the control board and the pressure sensor. Restore power and check if PrS returns. If it does, test the harness for continuity with a multimeter. A harness that fails continuity needs replacement. If the harness is good, replace the pressure sensor. If PrS persists after both parts test fine, the control board may need replacement.

If the fix is just reseating a loose harness connector, the cost is zero. A replacement pressure sensor typically costs between $20 and $60 depending on the model. A replacement wiring harness is usually in a similar range. If the control board is the cause, board replacement can run $100 to $250 or more for parts. A technician call will add $100 to $200 in labor depending on your area.