Daewoo Dishwasher Error E03

⚡ Quick Answer: The Daewoo dishwasher E03 error code indicates a drainage issue, typically caused by a malfunction in the drain pump. Users may notice water remaining... ✅ DIY Fixable

What Does Error E03 Mean?

The Daewoo dishwasher E03 error code indicates a drainage issue, typically caused by a malfunction in the drain pump. Users may notice water remaining in the bottom of the dishwasher, along with a humming sound, signaling that the appliance is unable to complete its draining cycle. Addressing this issue promptly is crucial for the optimal functioning of your dishwasher.

Common Symptoms:

  • Dishwasher stops mid‑cycle
  • Water remains in the bottom of the dishwasher
  • Dishwasher fails to complete drain cycle

Possible Causes

  • Drainage malfunction (blockage or pump issue) (medium)

How to Fix Error E03

DIY Fix Check and clear drain components

  1. Turn off and unplug the dishwasher.
  2. Remove and clean the dishwasher’s bottom filter and drain area.
  3. Inspect and clear any debris from the drain hose if accessible.
  4. Ensure the drain hose is not kinked or bent.
  5. Restart the dishwasher to see if the error clears.

Technician Only Inspect and service drainage pump and internal components

  1. Disconnect the dishwasher from power and access the internal pump assembly.
  2. Test the drainage pump for proper operation and continuity.
  3. Inspect the drain hose and pump assembly for blockages, wear or damage.
  4. Replace the drainage pump or any faulty drainage components as needed.

Parts needed: Drain pump, Drain hose, Filters

🛑 When to Call a Pro:
  • If water remains after clearing accessible blockages
  • If drainage pump fails testing
  • If internal components show electrical faults or damage

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-30 ohms
part_number DW-PUMP-001
voltage_rating 120V AC

Common Questions

What does E03 error mean on daewoo dishwasher?

E03 error indicates a drainage malfunction, often resulting in water remaining in the dishwasher.

Can I fix daewoo dishwasher E03 error myself?

Yes, you can check and clear the drain components, including the filter and drain hose.

How much does it cost to fix E03 error?

Estimated repair costs range from ¥8,000 to ¥25,000, depending on the model and region.

When should I call a technician for E03?

Call a technician if water remains after clearing blockages or if the drain pump fails testing.

Data last verified: 2026-04-23

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