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
- Unplug the machine from power
- Locate the drain filter access panel (typically bottom front)
- Place a shallow tray to catch residual water
- Open filter cover and turn filter counter‑clockwise to remove
- Clear debris and foreign objects from filter and pump inlet
- Reinstall filter securely and close panel
- Run a drain/spin cycle to test
DIY Fix Inspect drain hose and correct installation
- Unplug the washing machine
- Pull the machine away from the wall to access the drain hose
- Check for kinks or twists in the hose
- Disconnect hose at both ends if possible and flush with water to remove clogs
- Reinstall hose ensuring it isn’t bent and meets proper height/position guidelines
Technician Only Diagnose and replace faulty drain pump
- Disconnect appliance from power and water
- Remove access panel to reach drain pump
- Test pump impeller movement and motor electrical continuity
- Remove and replace pump if impeller is seized or electrical tests fail
- Reassemble machine and verify drainage function
Parts needed: Drain pump assembly, Pump seal or gasket (if needed)
- 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
Next step
Choose the next step for E21
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
- Typical part-only price
- $35 - $80
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
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: 2026-07-31
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