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

  1. Unplug the washing machine from power.
  2. Locate the pump filter access panel at the bottom front of the washer.
  3. Place towels or a shallow pan beneath to catch water.
  4. Open the panel, remove the filter, and clear debris.
  5. Reinstall the filter securely and close the panel.

DIY Fix Inspect drain hose

  1. Unplug the washing machine.
  2. Pull the washer away from the wall to access the drain hose.
  3. Check the drain hose for kinks, bends, or visible blockages.
  4. Straighten or replace the hose if necessary.
  5. Reconnect and test a drain cycle.

Technician Only Test and replace drain pump if faulty

  1. Disconnect power and water supply.
  2. Remove appropriate access panels to reach the drain pump.
  3. Check electrical connections and test pump operation.
  4. Replace drain pump if it fails when powered and cleared of blockages.
  5. Reassemble and verify proper drain function.

Parts needed: Drain pump assembly, Hose clamps or connectors (if replaced)

🛑 When to Call a Pro:
  • 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.

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: 2026-04-14

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