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Error code reference

GE Dishwasher Error Code PrS

Pressure sensor signal is undetectable or out of range, causing the cycle to be cancelled.

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Pressure sensor signal is undetectable or out of range, causing the cycle to be cancelled.

First step from the service manual

Verify pressure sensor harness, then replace the pressure sensor if needed.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What PrS means on a GE dishwasher

The PrS error code indicates the control board has detected a critical failure in the pressure sensor circuit. The pressure sensor monitors water levels inside the dishwasher tub, and when the board cannot receive a valid signal from this sensor, it flags PrS as a critical fault and halts operation. This can result from an open or short circuit in the sensor harness, a failed pressure sensor, or a loose connection at either the board or sensor connector.

For homeowners, the pressure sensor is the part that tells your dishwasher how much water is in the tub. Without a reliable reading from this sensor, the dishwasher cannot safely control the fill cycle, so it shuts down rather than risk overfilling or running dry. The most common cause is a wiring harness that has worked loose or corroded at one of its connectors, which is worth checking before replacing any parts.

Because PrS is classified as a critical fault, the dishwasher will not resume normal operation until the fault is resolved. Start by unplugging the unit, then reseat the harness connectors at both the control board and the pressure sensor. If the error returns after restoring power, test the harness for continuity and replace the pressure sensor if the harness checks out.

Source: manufacturer service documentation.

Common causes of PrS

  1. 01

    Disconnected or loose pressure sensor harness

    Wiring / connection

    The wiring harness connecting the pressure sensor to the control board can work loose at either end due to vibration over time. A poor connection interrupts the sensor signal and triggers the PrS fault.

  2. 02

    Failed pressure sensor

    Part replacement

    The pressure sensor itself can fail internally, producing no signal or an out-of-range signal that the control board flags as a critical fault. Reseating the harness will not resolve the fault if the sensor has failed.

  3. 03

    Damaged or open-circuit pressure sensor harness

    Part replacement

    A harness with a broken wire, burned contact, or corroded terminal will fail a continuity test and prevent any valid signal from reaching the control board. The harness must be replaced if continuity is absent.

  4. 04

    Faulty control board

    Part replacement

    If the pressure sensor and harness both test good but PrS persists, the control board may have a failed input circuit for the sensor signal. This is the least common cause and is usually confirmed only after ruling out the sensor and wiring.

See the test procedure for each cause

Frequently asked questions about PrS

What does the PrS error code mean on a GE dishwasher?
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.
How do I fix the PrS error code on my GE dishwasher?
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.
Can I still use my GE dishwasher when it shows the PrS code?
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.
How much does it cost to fix a PrS error on a GE dishwasher?
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.
Is the PrS code on a GE dishwasher hard to diagnose and repair yourself?
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.

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