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
- Turn off and unplug the dishwasher.
- Remove and clean the dishwasher’s bottom filter and drain area.
- Inspect and clear any debris from the drain hose if accessible.
- Ensure the drain hose is not kinked or bent.
- Restart the dishwasher to see if the error clears.
Technician Only Inspect and service drainage pump and internal components
- Disconnect the dishwasher from power and access the internal pump assembly.
- Test the drainage pump for proper operation and continuity.
- Inspect the drain hose and pump assembly for blockages, wear or damage.
- Replace the drainage pump or any faulty drainage components as needed.
Parts needed: Drain pump, Drain hose, Filters
- If water remains after clearing accessible blockages
- If drainage pump fails testing
- If internal components show electrical faults or damage
Next step
Choose the next step for E03
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Drain Pump
Pumps waste water out of the appliance during the drain cycle.
- Typical part-only price
- $35 - $80
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other components that may be involved
Check these only if your diagnosis points to them.
Drain Hose
Carries waste water from the drain pump to your home's standpipe or sink drain.
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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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