Samsung Washer Error Code PE

Samsung Washer PE Error Code — What It Means

The PE error code on a Samsung washer stands for a pressure-related fault (pressure electronic or pressure sensor error). It indicates that the washer’s control system is detecting inconsistent or impossible water-level information from the pressure sensor (also called the water level sensor or pressure switch) or its related air hose. When the washer can’t accurately measure water level, the machine may stop mid-cycle, fail to fill, overfill, refuse to spin, or show extended cycle times. On washer-dryer combos the PE code can also lead to longer drying times because improper water sensing interferes with correct cycle selection. Besides inconvenience and wasted time, a persistent PE condition can create safety risks such as overfilling and potential flooding, so diagnosing and fixing it promptly is important.

Common Causes

• Faulty pressure sensor (water level sensor) giving incorrect readings.
• Blocked, kinked, disconnected, or pinched air pressure hose between tub and sensor.
• Clogged pressure chamber or debris inside the sensing port.
• Faulty main control board (PCB) or bad sensor connections/wiring harness.
• Malfunctioning water inlet valve causing erratic fill behavior that confuses the sensor.
• Drain pump or clogged drain causing abnormal water levels and pressure readings.
• Software glitch requiring a diagnostic reset or firmware update (less common).

Troubleshooting Steps

1. Power reset: Unplug the washer or turn off the breaker for 1 minute, then restore power. Note if the code returns — a transient glitch may clear with a reset.
2. Inspect the air hose: Gain access to the pressure sensor and check the small rubber/plastic hose for kinks, clogs, splits, or disconnection from the sensor or tub. Replace or reconnect if damaged.
3. Clean pressure ports: Remove lint or residue from the pressure chamber/tub port and the hose ends. Small debris can block proper air pressure signaling.
4. Check wiring and connectors: Examine the wiring harness to the pressure sensor and main control board for loose connectors, burnt pins, or corrosion. Re-seat connectors and repair damaged wires.
5. Test the pressure sensor: If you have a multimeter, test the sensor per the service manual to confirm it changes resistance or voltage as pressure changes. Replace if out of spec.
6. Verify fill and drain operation: Ensure the inlet valve opens and the drain pump clears water. Erratic water levels from filling/draining faults can trigger PE.
7. Run diagnostic mode: Use the washer’s service diagnostic mode to read live sensor data and error history (consult the model-specific manual). This helps pinpoint sensor vs. board issues.
8. Swap or replace suspect parts: If tests point to a bad pressure sensor or air hose, replace them before replacing the main board. Replace the main control board only after ruling out sensors/wiring.
9. When in doubt, call a technician: If electrical testing or part replacement is outside your comfort level, contact a certified Samsung repair pro to avoid safety risks.

Maintenance / Prevention Tips

• Inspect the pressure hose during periodic cleaning and move cycles to ensure it remains free and flexible.
• Keep the washer drum and tub openings free of lint and detergent residue to prevent port blockages.
• Use the correct detergent type and quantity to reduce suds that can interfere with sensors.
• Keep the area around the washer clean to reduce dust and debris infiltration into sensors and hoses.
• Run a monthly tub-clean or hot-water maintenance cycle to clear residues.
• Check for and clear foreign objects lodged around the tub that could block pressure ports.
• Avoid overloading the washer; uneven loads can affect water levels and sensor behavior.
• Inspect hoses and wiring during annual maintenance checks for wear and tear.
• Replace brittle or aging air hoses proactively—rubber and plastic can crack with age.
• Make sure the washer is level to prevent unusual water distribution that may confuse sensors.
• Use professional installation to ensure inlet and drain plumbing won’t cause pressure anomalies.
• Keep firmware and service bulletins in mind; if Samsung issues an update or recall, follow guidance.
• Avoid DIY fixes on electronics unless you have the right tools and experience; incorrect repairs can create more faults.

FAQs

Conclusion / Safety Notice

Addressing a PE error promptly helps prevent longer cycle times, damage from overfilling, and potential water damage to your home. While many checklist items (hose checks, cleaning pressure ports, simple resets) are DIY-friendly, working with electrical components, control boards, or replacing parts requires caution. Always unplug the washer and turn off the water before performing inspections.

If the error persists after basic troubleshooting, or if you find damaged wiring or a failed control board, contact a certified appliance technician or Samsung-authorized service provider. Professional diagnosis ensures safe repair, correct part replacement, and preserves any remaining warranty coverage.