AEG Dryer Error E21
⚡ Quick Answer: The AEG dryer error E21 indicates a malfunction in the condensate/drain pump system, often due to blockage or electrical failure. This results in the ... ✅ DIY Fixable
What Does Error E21 Mean?
The AEG dryer error E21 indicates a malfunction in the condensate/drain pump system, often due to blockage or electrical failure. This results in the dryer stopping shortly after starting, with water not being pumped out properly and possible activation of float/overflow indicators. Users may find water accumulating in the base tray. Immediate action is needed to clear any blockages or check for pump operation to restore normal function.
Common Symptoms:
- Dryer stops during the cycle shortly after start
- Condensate water is not pumped out normally
- Possible float/overflow indicator triggered
- Water may remain in base tray
Possible Causes
- Condensate pump blocked or jammed (medium)
- Condensate pump electrical/motor failure (medium)
- Pump drive or control circuit fault (Triac/board) (low)
How to Fix Error E21
DIY Fix Check and clear pump and hoses (basic)
- Ensure the dryer is unplugged.
- Locate and remove the condensate pump access panel.
- Inspect the pump impeller area for lint, debris or foreign objects and remove obstructions.
- Check connecting hoses for kinks or blockages and clear them.
- Reassemble, power on and run a short cycle to see if error clears.
Technician Only Professional pump and electronics diagnosis
- Disconnect mains and drain any residual water.
- Remove and bench‑test the condensate pump electrical operation.
- Check wiring harness and connectors for damage or corrosion.
- Inspect pump drive circuit (Triac) on control board for faults.
- Replace faulty pump or electronic components as needed, then verify operation with test cycle.
Parts needed: Condensate pump assembly, Pump wiring harness, Control board (if required)
- If the pump does not run after clearing blockages
- If there is water leakage inside the dryer
- If you are not confident handling electrical components safely
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
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
- Typical part-only price
- $20 - $120
- DIY difficulty
- Medium
- Estimated time
- 30-90 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.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dryer 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.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
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 AEG dryer?
The E21 error indicates a failure in the condensate pump, causing the dryer to stop shortly after starting and preventing normal water removal.
Can I fix AEG dryer E21 error myself?
Yes, you can check and clear the pump and hoses by inspecting for blockages after unplugging the dryer.
How much does it cost to fix E21 error?
The estimated repair cost for the E21 error ranges from $80 to $300, depending on parts and service.
When should I call a technician for E21?
Call a technician if the pump doesn't run after clearing blockages, if there's water leakage inside the dryer, or if you're not comfortable handling electrical components.
Data last verified: 2026-07-31
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