Error Code E20

Washing Machine Error Code E20: Drain Pump Problem

Has your Midea, LiddleSwan, or Zanussi washing machine displayed error code E20? This code signifies a critical failure in the appliance’s drainage system communication. Specifically, the machine’s electronic control board cannot detect the presence or operation of the drain pump. This failure to register the pump suggests either a mechanical breakdown of the pump itself or a complete interruption in the electrical circuit supplying power and/or signal to the pump.

Important Safety Note: Before attempting any inspection or troubleshooting of internal components, always unplug the washing machine from the electrical outlet to prevent the risk of electric shock.

What to do:

• Check the drain pump:

  • Physical Connection: Locate the drain pump, typically situated at the bottom front of the appliance. Verify that the electrical harness connecting the pump to the main unit is correctly seated. A partially disconnected or loose plug can prevent the control board from receiving a signal.
  • Visible Damage: Inspect the pump housing and motor for any visible signs of failure, such as burn marks, corrosion caused by water leakage, or physical damage. Damage often indicates the pump motor has failed internally.
  • Operational Check: Initiate a short drain cycle (if possible) and listen carefully. If the pump is functional, you should hear a distinct whirring or humming sound as it attempts to evacuate water. Complete silence when the drain cycle is commanded strongly suggests the pump is not receiving power or has seized.

• Check the wiring:

  • Inspect the Harness: Trace the wiring harness running from the appliance’s main control system to the drain pump assembly. This wiring is the direct link that allows the control board to detect and power the pump.
  • Look for Faults: Carefully inspect the entire length of the wiring for any signs of damage, including chafed insulation, wires that have been pinched, or complete breaks. Damaged wires will create an open circuit, leading directly to the E20 detection failure.
  • Ensure Security: Confirm that all spade connectors or terminal blocks leading into the pump and back into the machine are securely fastened and that no wire has pulled loose from its crimped connector. Loose or corroded connections are a frequent cause of intermittent communication errors.

• Turn the washing machine off and on again:

  • Perform a Hard Reset: Unplug the appliance from the wall outlet for at least 5 minutes. Plug the machine back in and attempt to run a short cycle. This simple power cycling procedure clears temporary electronic glitches or transient memory faults that might have mistakenly triggered the E20 code.

If the problem persists after these steps, it indicates a likely internal component failure—either a permanently failed drain pump motor or a fault within the main control board circuitry that governs the pump. In this scenario, access to testing equipment (like a multimeter) and specialized technical knowledge is required.

If the problem persists, please contact an authorized repair technician. Mention error code E20 and the troubleshooting steps you have already performed when arranging the service appointment.