GE Dishwasher Error Code PrF

PrF stands for pressure sensor failure on a GE dishwasher. It means the control board is receiving a signal from the water-level pressure sensor that is either undetectable or outside a rational range. When this happens, the dishwasher cancels the current cycle to avoid running with an unknown water level. The fault points to either a wiring issue in the sensor harness or a failed pressure sensor.

A reset may temporarily clear the PrF code, but it will return if the underlying fault is not corrected. The dishwasher's control board generates this code in response to an actual sensor signal problem, so clearing it without fixing the harness or sensor will result in the cycle being cancelled again. A reset is useful for confirming whether the error is intermittent, but it is not a repair.

If only the wiring harness needs to be reseated or cleaned, the repair may cost nothing beyond your time. If the pressure sensor requires replacement, parts typically range from $20 to $60 depending on the specific model. If you hire a technician, total repair costs including labor generally fall in the range of $100 to $200. Control board replacement, which is rarely needed for this code, would be significantly more expensive.

In many cases, yes. Start by inspecting the pressure sensor wiring harness for loose connectors or visible wire damage, since a disconnected or corroded connector is a common cause. If the harness appears intact and properly seated, the pressure sensor itself likely needs to be replaced. Replacing the sensor is a straightforward repair for someone comfortable working with appliance wiring and basic hand tools.

It is not recommended to continue using the dishwasher while the PrF code is active. The pressure sensor is responsible for monitoring water level, and without reliable data from that sensor, the control board cannot verify that the tub has filled correctly. Running the dishwasher in this condition risks running the wash pump dry or allowing an overfill condition, both of which can cause further damage.