Samsung Dishwasher Error Code PE

Samsung Dishwasher Error Code: PE — What It Means

The PE error on a Samsung dishwasher is typically a water-level or pressure-related fault indicator. In many Samsung models, “PE” points to an issue with the dishwasher’s ability to sense or control water flow and level (for example a pressure sensor, float switch/assembly, or flow path blockage). It can also surface after power interruptions or when the electronic control detects inconsistent signals from the inlet/drain circuits. When the dishwasher displays PE, users commonly experience interrupted cycles, incomplete rinses, longer drying times, or a machine that won’t start or finish a program. In some cases, the issue can increase the risk of leaks, overheating of components (if pumps run dry), or water overflow if a sensor fails to shut off the inlet — so it should be diagnosed and addressed promptly.

Common Causes

• Faulty or stuck float switch / water level sensor preventing correct level detection
• Clogged inlet filter or low water pressure causing insufficient water flow
• Blocked or kinked water supply hose
• Malfunctioning water inlet valve (won’t open or close properly)
• Obstructed drain pump or filter assembly causing backpressure
• Damaged flow/pressure sensor or flow meter (if present on the model)
• Loose or corroded wiring/connectors between sensors and the control board
• Defective electronic control board (PCB) or user interface board reporting false errors
• Door latch/switch faults causing the machine to pause or report sensor inconsistencies
• Recent power surge, outage, or software glitch requiring a reset

Troubleshooting Steps

1. Power cycle the dishwasher: turn off at the wall or breaker for 1–2 minutes, then restore power to clear transient errors.
2. Reset the control: run the factory diagnostics or a reset sequence if your model manual lists one (consult the user manual/model service guide).
3. Check the water supply: ensure the household water supply valve is fully open and incoming water pressure is normal.
4. Inspect the inlet hose and filters: turn off water, disconnect the inlet hose and clean the inlet filter/screen to remove debris or mineral buildup.
5. Examine the float assembly and float switch: open the dishwasher base (power off first) and confirm the float moves freely and the switch is not stuck or obstructed by debris.
6. Clean the dishwasher filter and drain area: remove and clean the bottom filter, check for debris blocking the sump or drain pump that could affect flow sensing.
7. Check the drain pump and hoses: ensure the drain pump is not jammed and hoses are free of kinks or blockages causing backpressure.
8. Inspect wiring and connectors: look for loose, burned, or corroded connectors between the inlet valve, sensors, and control board. Re-seat connectors if safe to do so.
9. Run a diagnostic/test cycle: many Samsung dishwashers provide a diagnostic mode that reveals sensor or error logs — follow the service manual steps to run it.
10. If the PE repeats after these checks, record when and how the error appears (during fill, mid-cycle, after power interruption) and call Samsung support or a qualified appliance technician to test/replace the pressure/flow sensor, inlet valve, or control board as appropriate.

Maintenance / Prevention Tips

• Keep the water inlet screen and hose connections clean — check them every 3–6 months.
• Run a monthly cleaning cycle with dishwasher cleaner or white vinegar to prevent mineral buildup.
• Inspect and clean the bottom filter after every few loads to avoid blockages.
• Avoid overloading the dishwasher so spray arms and sensors aren’t obstructed.
• Use recommended dishwasher detergent and avoid excess detergent that can create residue.
• Replace old, brittle inlet and drain hoses every 5–7 years or sooner if damaged.
• Ensure the dishwasher sits level to allow proper float movement and drainage.
• Keep the area under the dishwasher dry and free from debris that could interfere with float operation.
• Check household water pressure — install a pressure regulator if pressure is too low or fluctuates widely.
• Install a whole-home water softener if you have hard water to reduce mineral deposits on sensors and valves.
• Don’t run the dishwasher during known power instability unless you have surge protection for major appliances.
• Periodically run a quick rinse cycle with no dishes to verify proper fill and drain function after maintenance.
• When loading, avoid blocking the path of the sump and spray arms to maintain consistent water flow.
• Replace worn door latch assemblies promptly to prevent mid-cycle interruptions.
• Keep the user manual and model-specific troubleshooting guide for quick reference.

FAQs

Conclusion / Safety Notice

Diagnosing a PE error involves both simple user maintenance and potentially technical electrical checks. Start with the non-invasive steps (power reset, cleaning filters, checking hoses and float) and consult your Samsung user manual for model-specific guidance. If you find evidence of water leakage, damaged wiring, or if the error persists after basic troubleshooting, stop using the appliance and call a certified appliance technician. Working on electrical parts, pumps, and control boards carries a risk of electric shock or further damage if handled improperly.

When in doubt, contact Samsung support or a licensed appliance repair professional to perform safe, reliable diagnostics and repairs. Prompt, safe action reduces the risk of water damage and extends the life of your dishwasher.