As an expert technician, I have diagnosed the Smeg dishwasher with error code E11. This specific error indicates a failure within the Wash Motor (also known as the Circulation Pump) or its control circuitry. The Main Control Board has detected that the motor is not spinning at the required speed, is drawing incorrect current, or has an open circuit in its windings.
Smeg dishwasher with error code E11: Diagnostic Report
Error Meaning:
The e11 code signifies a Wash Motor fault. This component is responsible for spraying water through the spray arms. When the control board sends power to the motor but does not receive the correct feedback (or detects a physical blockage), the cycle halts and displays the error to prevent further damage.
Step-by-Step Troubleshooting:
- Hard Reset: Disconnect the dishwasher from the power supply for at least 10 minutes. This clears the temporary memory of the Main Control Board.
- Check for Blockages: Remove the bottom filters and check the sump area. Use a flashlight to see if any debris (broken glass, fruit pips, or toothpicks) has reached the Wash Motor Impeller.
- Inspect Wiring: Access the bottom of the unit by removing the kickplate or base pan. Inspect the wiring harness leading to the Wash Motor for signs of burning, corrosion, or loose spade connectors.
- Test the Start Capacitor: If your model uses a standard induction motor, it will have a Start Capacitor (a small cylinder attached to the motor). If it appears bulged or leaked, it must be replaced.
- Manual Rotation: Attempt to spin the Wash Motor cooling fan or impeller by hand. If it is seized or difficult to turn, the bearings have failed.
- Electrical Continuity Test: Use a multimeter to check the resistance of the motor windings.
Expected Ohmic/Resistance Values:
- Standard Induction Motor: You should measure between 50 Ω and 150 Ω across the main windings.
- BLDC / Inverter Motor (3-Phase): These motors have three terminals. You should measure approximately 10 Ω to 30 Ω between any two terminals (e.g., 1-2, 2-3, and 1-3). The values must be nearly identical; a significant deviation indicates a shorted or open winding.
- Start Capacitor: If testing with a capacitance meter, it should match the value printed on the casing (typically 3 μF to 10 μF).
Estimated Repair Cost:
- Start Capacitor: $20 – $45 USD.
- Wash Motor / Circulation Pump Assembly: $160 – $350 USD.
- Main Control Board: $150 – $280 USD.
Warning:
Always disconnect the dishwasher from the electrical power source and shut off the water supply before removing any panels or touching internal components. Dishwashers often have sharp metal edges on the chassis; wearing protective gloves is highly recommended. If you detect a leak, ensure the unit is completely dry before testing electrical components.
Repair Difficulty:
DIY (Intermediate) to Professional. Replacing a capacitor or clearing a blockage is manageable for a confident DIYer. However, replacing the Wash Motor or diagnosing a faulty Main Control Board requires advanced disassembly and electrical testing, which may require a professional technician.
I am a master Appliance Repair technician with over 35 years of experience in the field. I am passionate about helping people troubleshoot their appliances and fix common problems. My website, appliancemode.com, provides a wealth of information on troubleshooting common appliance issues and deciphering error codes. This website aims to empower people to tackle appliance repairs themselves and save money on service calls.
