Error Code EC3

Error Code EC3: Weight Sensor Fault

Applies to: AEG, Electrolux, Quelle-Privileg washing machines

The error code EC3 on your washing machine indicates a problem with the internal weight sensor. This sensor is responsible for weighing the laundry load at the beginning of a cycle to optimize water usage and cycle duration. When this error appears, the machine has detected an issue with the signal from this component.

Possible Causes

The EC3 error code is triggered when the machine’s main control board receives problematic data from the weight sensor. The specific causes can include:

• No Signal: The control board is receiving no signal at all from the sensor. This often points to a disconnected wire or a complete failure of the sensor component.
• Signal Outside Normal Values: The sensor is sending a signal, but the data is outside the expected operational range. This can happen if the sensor is faulty, miscalibrated, or if there is a partial connection issue causing incorrect readings.
• Faulty Connection: The wiring harness that connects the weight sensor to the main control board may be loose, corroded, or damaged, interrupting the signal.

Troubleshooting Steps

Before calling for service, you can perform the following checks.

Important Safety Note: Always disconnect the washing machine from the electrical outlet before attempting any inspection or repair.

1. Power Cycle the Appliance Sometimes, a temporary electronic glitch can cause an error.

• Turn off the washing machine using the power button.
• Unplug the appliance from the wall socket and wait for 5-10 minutes.
• Plug the machine back in and turn it on. Try starting a new cycle to see if the error has cleared.

2. Check the Sensor Connection (If Accessible) If you have the technical confidence to remove the appliance’s access panels (typically the top or back), you can perform a visual inspection.

• Locate the weight sensor. Its exact position can vary by model, but it is typically located near the base of the machine, connected to the suspension system.
• Carefully inspect the wires running from the sensor to the main control board.
• Look for any connectors that may have worked loose due to vibration. Ensure any plugs are firmly and securely seated.
• Check for any visible signs of damage, such as pinched or broken wires.

When to Contact a Technician

If the troubleshooting steps above do not resolve the EC3 error, the problem likely requires professional intervention. The issue may be a faulty sensor that needs to be replaced or a more complex problem with the main control board.

Contact an authorized service technician. A qualified technician will have the necessary diagnostic tools and replacement parts to accurately identify the cause and perform a safe and effective repair.