Bosch Washing Machine Error F42

⚡ Quick Answer: The Bosch washing machine error F42 indicates a motor-related fault, often manifesting as a drainage issue. Symptoms include a displayed error code du... ✅ DIY Fixable

What Does Error F42 Mean?

The Bosch washing machine error F42 indicates a motor-related fault, often manifesting as a drainage issue. Symptoms include a displayed error code during the cycle, unusual noises from the motor area, and erratic drum rotation. This error could be caused by a malfunctioning motor or excessive engine speed detected during self-diagnosis. Immediate attention is required to avoid further damage.

Common Symptoms:

  • Error code F42 displayed during cycle
  • Unusual noise from motor area
  • Machine vibrating or bouncing during spin
  • Drum not turning or erratic rotation

Possible Causes

  • Motor fault (brushes or motor itself) (medium)
  • Excessive engine speed detected by self‑diagnosis (medium)

How to Fix Error F42

DIY Fix Power cycle and basic checks

  1. Turn off the washing machine and unplug it from mains power.
  2. Check for obvious issues such as overloaded drum or heavy load imbalance.
  3. Remove excess laundry and redistribute load evenly.
  4. Plug machine back in and restart a short cycle to test.

Technician Only Inspect and service motor assembly

  1. Disconnect power and access rear or bottom panel to reach motor.
  2. Inspect motor carbon brushes for wear and replace if necessary.
  3. Check motor windings and commutator for damage.
  4. Verify motor control board signals and connections.
  5. Test motor operation under controlled conditions.

Parts needed: Motor carbon brushes, Motor assembly, Motor control module

🛑 When to Call a Pro:
  • If the error persists after basic user‑level checks
  • If the machine shows severe vibration or noise
  • If there are electrical burning smells

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-20 ohms
part_number Bosch 00620334
voltage_rating 120V AC

Common Questions

What does F42 error mean on bosch washing machine?

The F42 error indicates a motor fault, often affecting the drainage process and causing unusual noises.

Can I fix bosch washing machine F42 error myself?

Yes, you can perform basic checks like power cycling the machine and redistributing laundry to resolve the issue.

How much does it cost to fix F42 error?

The estimated repair cost ranges from ¥15,000 to ¥50,000, including parts and labor.

When should I call a technician for F42?

Call a technician if the error persists after your checks, if there's severe vibration or noise, or if you smell burning.

Sources & References

Data last verified: 2026-07-07

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