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)

  1. Ensure the dryer is unplugged.
  2. Locate and remove the condensate pump access panel.
  3. Inspect the pump impeller area for lint, debris or foreign objects and remove obstructions.
  4. Check connecting hoses for kinks or blockages and clear them.
  5. Reassemble, power on and run a short cycle to see if error clears.

Technician Only Professional pump and electronics diagnosis

  1. Disconnect mains and drain any residual water.
  2. Remove and bench‑test the condensate pump electrical operation.
  3. Check wiring harness and connectors for damage or corrosion.
  4. Inspect pump drive circuit (Triac) on control board for faults.
  5. 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)

🛑 When to Call a Pro:
  • 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

Technical Specifications

wattage 2000W
component Heating Element
resistance 10-30 ohms
part_number AEG 124000000
voltage_rating 230V AC

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: 2026-03-13

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