Miele Washing Machine Error F21
⚡ Quick Answer: The Miele washing machine error F21 indicates a drainage issue, typically showing on the display along with sounds of water not being expelled. This e... ✅ DIY Fixable
What Does Error F21 Mean?
The Miele washing machine error F21 indicates a drainage issue, typically showing on the display along with sounds of water not being expelled. This error often means the washing machine fails to drain properly, leaving water in the drum and halting the cycle before the spin phase. To address this, check for kinks or blockages in the drain hose and clean the drain pump filter if accessible.
Common Symptoms:
- Code F21 displayed on washer panel
- Washing machine fails to drain or stops mid cycle
- Water remains in drum after cycle attempts
- Cycle halts before spin due to incomplete drain
Possible Causes
- Drainage system restriction (low)
How to Fix Error F21
DIY Fix Check and Clear Drain Pathway
- Turn off and unplug the washing machine.
- Check the drain hose at the back for kinks, bends, or blockages.
- Access and clean the drain pump filter (if present) of lint and debris.
- Run a ‘drain/spin’ program to see if water evacuates.
Technician Only Inspect and Service Drain Components
- Test drain pump operation and replace if pump impeller is seized or motor faulty.
- Inspect internal drain hose connections for blockages or damage.
- Use diagnostic tools to check water level/pressure sensor readings during drain cycle.
Parts needed: drain pump, drain hose, pressure/water level sensor
- If water remains after drain attempts despite clearing hose/filter
- If drain pump makes unusual noises or does not run at all
- If machine displays additional error codes simultaneously
Next step
Choose the next step for F21
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.
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
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.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
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 F21 error mean on Miele washing machine?
The F21 error indicates a drainage problem, causing water to remain in the drum and halting the washing cycle.
Can I fix Miele washing machine F21 error myself?
Yes, you can check for kinks in the drain hose and clean the drain pump filter to resolve the issue.
How much does it cost to fix F21 error?
The estimated repair cost for the F21 error ranges from ¥10,000 to ¥50,000, depending on parts and labor.
When should I call a technician for F21?
Call a technician if water remains after clearing the hose and filter, if unusual noises come from the drain pump, or if other error codes appear.
Sources & References
Data last verified: 2026-07-31
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