The short answer
PrS means the pressure sensor is sending the control a signal it cannot use, and the consequence is immediate: the machine either refuses to start a cycle or cancels one part way through. The sensor is how the control knows the water level, so without a valid reading it will not risk filling. This one is a parts-and-plumbing fault rather than something a reset cures for long.
GE dishwasher code as the manufacturer publishes it
Reference| Code | Meaning |
|---|---|
| PrS | Indicates the pressure sensor is sending an invalid signal to the control. Cannot start cycle or it will cancel. |
What you observe alongside the code
- The cycle will not start at all — The control gates the fill on this reading.
- A cycle that cancels itself part way — The signal went out of range mid-cycle.
- The code appears with the tub obviously empty — Proves the reading rather than the water is wrong.
- Intermittent behaviour that follows heavy loads — Soil and suds reaching the sensing chamber.
What triggers it, most likely first
- A fouled or blocked pressure sensing chamber — First, and the only owner-reachable cause: grease and soil collect in the chamber and damp the pressure the sensor should see.
- A split, kinked or detached sensing tube — Second: a short rubber tube between chamber and sensor, and it perishes with heat and age.
- A failed pressure sensor — Third: the sensor is an electronic part in a hot, wet place and it does eventually go out of range for good.
- A wet or damaged harness, or a control input fault — Last: water tracking into the connector produces the same invalid signal as a dead sensor.
Check in this order, and why
- Cut power for a full minute and see whether a cycle will start — A reset that holds for a cycle points at something intermittent rather than dead.
- Clean the filter and sump thoroughly — Reduces what reaches the sensing chamber and is free.
- Inspect the sensing tube where it is visible — A tube off its spigot is an easy and complete explanation.
- Treat the sensor itself as the last suspect — Replacing it before the tube and chamber are checked wastes a part.
Clearing the code, then the owner-safe checks
- Cut power at the breaker for a full minute and restore it — Clears a latched fault; note how long it stays clear.
About 5 min
- Clean the filter, sump and anything greasy around it — Hot water and a brush. Grease is what fouls the chamber.
Tools: brush, glovesAbout 20 min
- Check the sensing tube is on its spigot and unsplit, where visible — Do not pull on a perished tube; it will part in your hand.
Tools: flashlightAbout 15 min
- STOP HERE if the code returns after a clean and a reset — The sensor and its harness sit behind the toe panel and that is a service call.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. On a built-in dishwasher the supply is not switched at the door, so the breaker is the only reliable off. Leave the door latch switch wired as it is: it stops the pump and the heater the moment the door opens. The sensing chamber is close to the sump and the pump terminals, so nothing comes apart with the breaker on.
When this code is a service call
Call once a reset and a thorough clean have not held: the remaining suspects are the sensing tube, the sensor and its harness, all behind the toe panel beside mains terminals. There is no flood risk while the code stands, because the control is refusing to fill precisely to avoid one — the cost of waiting is only a dishwasher you cannot use.
Neighbouring GE dishwasher codes
Which model lines this reading applies to
This reading of PrS applies to current GE and GE Profile built-in dishwashers with a digital display or a lit status row, the platform on which the manufacturer publishes it. A timer-driven machine with no display never shows it, and a Monogram or Hotpoint-badged unit can use the same characters for a different fault. Only the pressure-sensing GE platforms produce this code; machines that judge level by timing and a float report a different fault entirely.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
