Bauknecht Washing Machine Error F21
⚡ Quick Answer: The Bauknecht washing machine error F21 indicates a drainage problem where the machine fails to properly remove water during the drain cycle. This iss... ✅ DIY Fixable
What Does Error F21 Mean?
The Bauknecht washing machine error F21 indicates a drainage problem where the machine fails to properly remove water during the drain cycle. This issue is often accompanied by the F21 code displayed on the control panel, and it may result in water remaining in the drum, causing the cycle to stop unexpectedly. Common causes include a clogged drain pump filter, a blocked or kinked drain hose, or a malfunctioning drain pump.
Common Symptoms:
- F21 code displayed on control panel
- Washer fails to drain water properly
- Water remains in drum and cycle stops
Possible Causes
- Clogged drain pump filter (medium)
- Blocked or kinked drain hose (medium)
- Drain pump malfunction (medium)
How to Fix Error F21
DIY Fix Check and clean drain pump filter
- Unplug the washing machine from power.
- Locate the pump filter access panel at the bottom front of the washer.
- Place towels or a shallow pan beneath to catch water.
- Open the panel, remove the filter, and clear debris.
- Reinstall the filter securely and close the panel.
DIY Fix Inspect drain hose
- Unplug the washing machine.
- Pull the washer away from the wall to access the drain hose.
- Check the drain hose for kinks, bends, or visible blockages.
- Straighten or replace the hose if necessary.
- Reconnect and test a drain cycle.
Technician Only Test and replace drain pump if faulty
- Disconnect power and water supply.
- Remove appropriate access panels to reach the drain pump.
- Check electrical connections and test pump operation.
- Replace drain pump if it fails when powered and cleared of blockages.
- Reassemble and verify proper drain function.
Parts needed: Drain pump assembly, Hose clamps or connectors (if replaced)
- If water continues to remain in the drum after cleaning filter and inspecting drain hose.
- If there are unusual noises from the pump area during attempted drain cycles.
- If any electrical connection appears damaged or unsafe.
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.
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
| wattage | 30W |
|---|---|
| component | Drain Pump |
| resistance | 20-30 ohms |
| part_number | Bauknecht 481227128118 |
| voltage_rating | 230V AC |
Common Questions
What does F21 error mean on Bauknecht washing machine?
The F21 error indicates a drainage issue, preventing the washer from removing water during the cycle.
Can I fix Bauknecht washing machine F21 error myself?
Yes, you can check and clean the drain pump filter and inspect the drain hose for blockages.
How much does it cost to fix F21 error?
The estimated repair cost for the F21 error ranges from ¥8,000 to ¥20,000, including parts and labor.
When should I call a technician for F21?
Call a technician if water remains in the drum after cleaning, if there are unusual noises from the pump, or if any electrical connections appear damaged.
Data last verified: 2026-07-25
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