Defy Dishwasher Error E03

⚡ Quick Answer: The Defy dishwasher E03 error indicates a drainage issue, often resulting in the appliance halting mid-cycle. This error may be accompanied by a hummi... ✅ DIY Fixable

What Does Error E03 Mean?

The Defy dishwasher E03 error indicates a drainage issue, often resulting in the appliance halting mid-cycle. This error may be accompanied by a humming sound and can prevent the machine from completing its heating or cycle sequence. Users may experience this error intermittently or persistently, signaling the need for troubleshooting.

Common Symptoms:

  • Dishwasher halts mid‑cycle and displays E03
  • Possible failure to complete heating or cycle sequence
  • Error may be intermittent or persistent

Possible Causes

  • Blocked drain filter
  • Faulty drain pump
  • Kinked drain hose

How to Fix Error E03

DIY Fix Check basic dishwasher components and settings

  1. Turn off and disconnect power to the dishwasher.
  2. Ensure water supply is turned on and inlet hose not kinked.
  3. Check and clean filters and drain area of debris.
  4. Run a short cycle to see if issue persists.

Technician Only Professional diagnostic and potential component inspection

  1. Use service manual to enter diagnostic mode (if supported).
  2. Test heating element and associated sensors for continuity and proper operation.
  3. Inspect wiring harnesses and connections related to heating and control systems.
  4. Evaluate control board if other components test within specifications.

Parts needed: Heating element, Temperature sensors, Control board, Wiring harness

🛑 When to Call a Pro:
  • If error persists after basic user checks
  • If internal components show signs of damage
  • When diagnostic tools indicate faulty heating assembly or control board

Technical Specifications

wattage 50W
component Drain Pump
resistance 5-15 ohms
part_number DEFY-DW-PUMP-001
voltage_rating 230V AC

Common Questions

What does E03 error mean on Defy dishwasher?

E03 indicates a drainage problem, halting the dishwasher mid-cycle.

Can I fix Defy dishwasher E03 error myself?

Yes, check the water supply, clean filters, and ensure no kinks in the hose.

How much does it cost to fix E03 error?

Repair costs vary by part failure, typically ranging from medium to high.

When should I call a technician for E03?

Call if the error persists after checks or if components are damaged.

Sources & References

Data last verified: 2026-07-01

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