Zanussi Washing Machine Error E21

⚡ Quick Answer: The Zanussi Washing Machine E21 error indicates a drainage system fault, preventing the appliance from expelling wastewater. This results in symptoms ... ✅ DIY Fixable

What Does Error E21 Mean?

The Zanussi Washing Machine E21 error indicates a drainage system fault, preventing the appliance from expelling wastewater. This results in symptoms such as water remaining in the drum, the cycle stopping at the drain stage, and the E21 error code being displayed. Common causes include a blocked drain pump filter or issues with the drain hose, such as kinks or improper installation.

Common Symptoms:

  • Machine fails to drain water
  • Error code E21 displayed/LED flashes
  • Cycle stops or doesn’t progress past drain stage
  • Water remains in drum after wash

Possible Causes

  • Blocked drain pump filter or blockage in drain system (high)
  • Kinked or improperly installed drain hose (medium)

How to Fix Error E21

DIY Fix Check and clear drain filter

  1. Unplug the machine from power
  2. Locate the drain filter access panel (typically bottom front)
  3. Place a shallow tray to catch residual water
  4. Open filter cover and turn filter counter‑clockwise to remove
  5. Clear debris and foreign objects from filter and pump inlet
  6. Reinstall filter securely and close panel
  7. Run a drain/spin cycle to test

DIY Fix Inspect drain hose and correct installation

  1. Unplug the washing machine
  2. Pull the machine away from the wall to access the drain hose
  3. Check for kinks or twists in the hose
  4. Disconnect hose at both ends if possible and flush with water to remove clogs
  5. Reinstall hose ensuring it isn’t bent and meets proper height/position guidelines

Technician Only Diagnose and replace faulty drain pump

  1. Disconnect appliance from power and water
  2. Remove access panel to reach drain pump
  3. Test pump impeller movement and motor electrical continuity
  4. Remove and replace pump if impeller is seized or electrical tests fail
  5. Reassemble machine and verify drainage function

Parts needed: Drain pump assembly, Pump seal or gasket (if needed)

🛑 When to Call a Pro:
  • If cleaning filter and hose doesn’t clear error
  • If drain pump replacement is needed and you’re not comfortable with DIY repairs
  • If water leaks occur or other error codes accompany E21

Technical Specifications

wattage 30W
component Drain Pump
resistance 20-30 ohms
part_number Zanussi 1240001000
voltage_rating 230V AC

Common Questions

What does E21 error mean on Zanussi Washing Machine?

E21 error means the washing machine has a drainage fault, preventing it from expelling water.

Can I fix Zanussi Washing Machine E21 error myself?

Yes, you can check and clear the drain filter and inspect the drain hose for kinks.

How much does it cost to fix E21 error?

Repair costs for E21 error typically range from $50 to $200, depending on parts and labor.

When should I call a technician for E21?

Call a technician if cleaning the filter and hose doesn't resolve the error or if pump replacement is needed.

Sources & References

Data last verified: 2026-03-18

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