Asko Washing Machine Error F21
⚡ Quick Answer: The ASKO washing machine error F21 indicates a drain pump failure, often resulting in water not draining properly and the cycle stopping mid-way. This... ✅ DIY Fixable
What Does Error F21 Mean?
The ASKO washing machine error F21 indicates a drain pump failure, often resulting in water not draining properly and the cycle stopping mid-way. This error may cause unusual noises during the drain cycle, signaling a drainage fault where the system does not complete its cycle within the expected time. Common causes include blockages in the drainage system or obstructions in the drain pump and filter.
Common Symptoms:
- F21 displayed on control panel
- Water not draining properly
- Cycle stops mid‑way without completing spin
Possible Causes
- Drainage system blockage or restriction (medium)
- Drain pump/filter obstruction or malfunction (medium)
How to Fix Error F21
DIY Fix Check drain hose and filter
- Turn off and unplug the washer
- Access the drain pump filter (bottom front panel)
- Remove and clean any debris
- Ensure the drain hose is free of kinks and positioned correctly
Technician Only Inspect/repair drainage components
- Remove access panels
- Test and inspect drain pump for blockages, wear, or failure
- Verify electrical supply to drain pump
- Check pressure/water level sensor and associated tubing for faults
Parts needed: Drain pump, Drain hose, Pressure sensor
- If drainage components check normal but F21 persists
- If there is water leakage or electrical smells
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.
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 | 50W |
|---|---|
| component | Drain Pump |
| resistance | 10-20 ohms |
| part_number | ASKO 502202 |
| voltage_rating | 120V AC |
Common Questions
What does F21 error mean on asko washing machine?
F21 indicates a drain pump failure, leading to improper draining and cycle interruptions.
Can I fix asko washing machine F21 error myself?
Yes, you can check the drain hose and filter for blockages by cleaning them.
How much does it cost to fix F21 error?
Estimated repair costs range from $100 to $300, depending on parts and labor.
When should I call a technician for F21?
Call a technician if the error persists after checking drainage components or if you notice water leakage.
Sources & References
Data last verified: 2026-07-25
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