Bauknecht Washing Machine Error F18

⚡ Quick Answer: The Bauknecht washing machine error F18 indicates a malfunction related to the drain pump, often caused by excessive foam buildup or drainage obstruct... ✅ DIY Fixable

What Does Error F18 Mean?

The Bauknecht washing machine error F18 indicates a malfunction related to the drain pump, often caused by excessive foam buildup or drainage obstruction. Symptoms include the display showing F18, failure to drain water properly, unusual noises during operation, and possible interruption of the wash cycle. To resolve this issue, it is essential to check and reduce foam levels, inspect the drain pump filter and hose for blockages, and follow manufacturer guidelines for detergent use.

Common Symptoms:

  • Display shows F18
  • Machine does not drain water normally
  • Excessive foam observed
  • Wash cycle may stop mid‑cycle

Possible Causes

  • Excessive foam buildup interfering with normal drainage (medium)
  • Drainage obstruction (filter or hose blockage) preventing water removal (medium)

How to Fix Error F18

DIY Fix Check and reduce foam / detergent usage

  1. Stop the current wash cycle
  2. If foam is present, allow foam to settle or run a rinse cycle without detergent to reduce foam
  3. Use the correct amount and type of detergent per manufacturer guidelines

DIY Fix Inspect drain pump filter and hose

  1. Turn off and unplug the machine
  2. Open the service flap and remove the drain pump filter
  3. Clean any debris or foreign objects from the filter
  4. Ensure the drain hose is not kinked or blocked and reposition if necessary

Technician Only Service check of pump and foam detection components

  1. Inspect and test drain pump for mechanical failure
  2. Verify pressure/foam sensor operation and associated wiring
  3. Check for internal blockages or damaged drain components

Parts needed: Drain pump, Pressure/foam sensor, Hoses and connectors

🛑 When to Call a Pro:
  • If F18 persists after cleaning filter and reducing detergent
  • If draining components are malfunctioning or inaccessible
  • If excessive foam continues despite correct detergent use

Technical Specifications

wattage 30W
component Drain Pump
resistance 10-20 ohms
part_number Bauknecht 481231018198
voltage_rating 230V AC

Common Questions

What does F18 error mean on bauknecht washing machine?

F18 indicates a drain pump malfunction, often due to excessive foam or drainage blockages.

Can I fix bauknecht washing machine F18 error myself?

Yes, you can reduce foam usage, clean the filter, and check the hose for blockages.

How much does it cost to fix F18 error?

Estimated repair cost ranges from €50 to €150 for parts, plus labor.

When should I call a technician for F18?

Call a technician if F18 persists after cleaning or if components are malfunctioning.

Sources & References

Data last verified: 2026-04-14

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