Bosch Washing Machine Error E18

⚡ Quick Answer: The Bosch washing machine error code E18 indicates a drainage issue, typically caused by a blocked or clogged drain pump filter. When this error occur... ✅ DIY Fixable

What Does Error E18 Mean?

The Bosch washing machine error code E18 indicates a drainage issue, typically caused by a blocked or clogged drain pump filter. When this error occurs, the machine may fail to pump out water, leading to water remaining in the drum, unusual sounds during the drain cycle, or the wash cycle pausing unexpectedly. Proper troubleshooting can resolve this issue by cleaning the filter and inspecting the drain hose for blockages.

Common Symptoms:

  • Water remaining in drum
  • Wash cycle stops or pauses during drain
  • Unusual sounds during drain
  • Error code displayed when unable to empty water

Possible Causes

  • Blocked or clogged drain pump filter (high)

How to Fix Error E18

DIY Fix Check and clean drain pump filter

  1. Turn off and unplug the washer
  2. Open the service flap at the bottom front
  3. Place a shallow tray/towels to catch water
  4. Remove and clean the drain pump filter of debris
  5. Reinstall the filter securely and close the flap
  6. Run a short drain/spin cycle to test

DIY Fix Inspect drain hose for kinks and blockages

  1. Pull washer away from wall to access hose
  2. Check hose path for kinks or bends
  3. Detach hose from machine and drain connection
  4. Flush or clear blockages from hose
  5. Reattach hose ensuring proper positioning

Technician Only Inspect and replace drain pump if faulty

  1. Disconnect power and water supply
  2. Remove access panel and locate drain pump
  3. Test pump impeller movement and electrical function
  4. Replace drain pump unit if defective

Parts needed: drain pump assembly

🛑 When to Call a Pro:
  • After cleaning filter and hose if E18 persists
  • If unusual noise from pump indicating mechanical fault
  • If water still doesn’t drain after basic troubleshooting

Technical Specifications

wattage 30W
component Drain Pump
resistance 10-20 ohms
part_number Bosch 00419508
voltage_rating 240V AC

Common Questions

What does E18 error mean on bosch washing machine?

The E18 error indicates a drainage issue, often due to a blocked drain pump filter.

Can I fix bosch washing machine E18 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 E18 error?

Repair costs range from $50 to $200 for the drain pump part, plus labor.

When should I call a technician for E18?

Call a technician if E18 persists after cleaning, if you hear unusual noises from the pump, or if water still doesn't drain.

Sources & References

Data last verified: 2026-01-16

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