AEG Washing Machine Error E21
⚡ Quick Answer: The AEG washing machine E21 error signifies a drainage fault, indicating that the machine cannot effectively drain water during or after a wash cycle.... ✅ DIY Fixable
What Does Error E21 Mean?
The AEG washing machine E21 error signifies a drainage fault, indicating that the machine cannot effectively drain water during or after a wash cycle. This issue may arise from a blocked or dirty drain pump filter, a kinked or improperly positioned drain hose, or a faulty drain pump. Symptoms include water remaining in the drum after the cycle, the washing cycle halting and displaying E21, and unusual humming or pump noises without drainage.
Common Symptoms:
- Water remains in drum after cycle
- Washing cycle stops partway and displays E21
- Machine may hum or make pump noise without draining
Possible Causes
- Blocked or dirty drain pump filter (high)
- Blocked, kinked, or improperly positioned drain hose (high)
- Faulty or obstructed drain pump (impeller jammed or worn) (medium)
How to Fix Error E21
DIY Fix Check and clean drain filter
- Unplug the machine from power.
- Open the access panel at the bottom front.
- Remove and inspect the drain pump filter for debris.
- Clean the filter under running water and reinsert securely.
DIY Fix Inspect and clear drain hose
- Turn off and unplug the washer.
- Follow the drain hose to check for kinks, bends, or blockages.
- Straighten any kinks and flush the hose with water if blocked.
- Ensure the hose height and position meet installation guidelines.
- Reconnect securely.
Technician Only Test or replace drain pump
- Disconnect the appliance from power and water.
- Remove rear or bottom access panel to reach the drain pump.
- Inspect the pump impeller for damage or foreign object jams.
- Test pump operation with a multimeter if available.
- Replace the drain pump if defective.
Parts needed: drain pump assembly, pump impeller
- If clearing filter/hose doesn’t resolve the error
- If drain pump tests faulty or electrical issues suspected
- If water leaks or unusual noises persist during cycles
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
| wattage | 30W |
|---|---|
| component | Drain Pump |
| resistance | 20-30 ohms |
| part_number | AEG 1321930001 |
| voltage_rating | 230V AC |
Common Questions
What does E21 error mean on AEG washing machine?
E21 error indicates a drainage issue where the machine cannot drain water properly, often showing water level errors.
Can I fix AEG washing machine E21 error myself?
Yes, you can check and clean the drain filter and inspect the drain hose for kinks or blockages.
How much does it cost to fix E21 error?
The estimated repair cost for the E21 error ranges from $50 to $150 for parts, plus labor.
When should I call a technician for E21?
Call a technician if cleaning the filter or hose doesn't resolve the error or if you suspect a faulty pump or electrical issues.
Sources & References
- AEG support article on E20/E21/C2 errors (official)
- AEG Australia support on E20/E21 drainage issues (official)
Data last verified: 2026-07-26
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