Bosch Dishwasher Error E05

⚡ Quick Answer: The Bosch dishwasher error E05 indicates a malfunction in the wash arm diverter circuit on the main control board. This error can interrupt the wash c... ✅ DIY Fixable

What Does Error E05 Mean?

The Bosch dishwasher error E05 indicates a malfunction in the wash arm diverter circuit on the main control board. This error can interrupt the wash cycle, prevent the wash arms from rotating, and cause abnormal water distribution. If the dishwasher fails to drain or does not progress past the initial fill phase, the control board may need attention due to a detected fault in its circuit.

Common Symptoms:

  • Dishwasher interrupts a cycle and displays E05 upon startup or during wash.
  • Wash arms may not rotate or water distribution seems abnormal.
  • Dishwasher may not progress past initial fill/early cycle phase.

Possible Causes

  • Faulty wash arm diverter circuit on main control board (high)
  • Main control board / power module failure affecting E05 reporting (medium)

How to Fix Error E05

DIY Fix Basic dishwasher reset

  1. Turn off power to the dishwasher at the breaker or unplug it.
  2. Wait 30 seconds.
  3. Restore power and attempt to run a short cycle to see if the code clears.

Technician Only Test and replace the control board / wash arm diverter circuit

  1. Verify model-specific error code definition in service manual or diagnostic mode.
  2. Access the main control board according to service instructions.
  3. Test the wash arm diverter circuit and related components for continuity and correct operation.
  4. If the diverter circuit or board power module is confirmed faulty, replace the control board or necessary modules.

Parts needed: Main control board (PCB), Wash arm diverter motor / circuit components

🛑 When to Call a Pro:
  • If resetting power does not clear the error.
  • If you are not experienced with appliance electrical diagnostics.
  • If the control board needs testing or replacement.

Technical Specifications

wattage 30W
component Drain Pump
resistance 10-20 ohms
part_number Bosch 00422078
voltage_rating 120V AC

Common Questions

What does E05 error mean on bosch dishwasher?

E05 indicates a fault in the wash arm diverter circuit, disrupting the wash cycle and preventing proper operation.

Can I fix bosch dishwasher E05 error myself?

Yes, you can try resetting the dishwasher by turning off the power for 30 seconds to see if the error clears.

How much does it cost to fix E05 error?

Estimated repair costs for the E05 error range from $150 to $400, depending on the model and parts needed.

When should I call a technician for E05?

Call a technician if the error persists after a reset or if you're not comfortable with electrical diagnostics.

Sources & References

Data last verified: 2026-01-16

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