Dishlex Dishwasher Error i20

⚡ Quick Answer: The Dishlex dishwasher error code i20 indicates a drainage problem, which occurs when the appliance fails to drain water properly during or after a wa... ✅ DIY Fixable

What Does Error i20 Mean?

The Dishlex dishwasher error code i20 indicates a drainage problem, which occurs when the appliance fails to drain water properly during or after a wash cycle. This often results in standing water in the tub, interruptions in the cycle, and beeping or flashing indicators displaying the i20 error. Common causes include blockages in the drainage hose or sink connection, debris in the filter or sump area, and potential faults in the drain pump or pressure sensor.

Common Symptoms:

  • Standing water in dishwasher tub
  • Cycle stops mid‑program
  • Beeping or flashing indicators with i20 displayed

Possible Causes

  • Drainage blockage in hose or sink/spigot connection (medium)
  • Filter/sump debris obstructing water flow (medium)
  • Jam or fault in drain pump or pressure/level sensor (low)

How to Fix Error i20

DIY Fix Check basic drainage components

  1. Turn off and disconnect power to the dishwasher.
  2. Inspect and clean the dishwasher’s internal filter and sump area of debris.
  3. Check the external drain hose for kinks, bends, or visible obstructions.
  4. Ensure the sink spigot/drain where the dishwasher hose connects is not blocked.
  5. Reposition the drain hose to correct installation height and routing.
  6. Reconnect power and run a short cycle to test drainage.

Technician Only Inspect and service drain pump and sensors

  1. Disconnect dishwasher from power and water supply.
  2. Remove access panels to reach the drain pump and pressure/level sensor.
  3. Inspect and test the drain pump for impeller jams, motor operation, and electrical continuity.
  4. Check pressure/level sensor for proper operation and cleanliness; replace if faulty.
  5. Reassemble and run a diagnostic cycle to confirm resolution.

Parts needed: Drain pump assembly, Pressure/level sensor, Hose clamps and possibly replacement hose

🛑 When to Call a Pro:
  • If drainage issues persist after cleaning filters and hoses
  • If drain pump makes unusual noise or fails to operate
  • If water remains standing repeatedly and the machine fails to complete cycles

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-20 ohms
part_number DW-12345
voltage_rating 240V AC

Common Questions

What does i20 error mean on Dishlex dishwasher?

The i20 error indicates a drainage issue, typically characterized by standing water in the dishwasher.

Can I fix Dishlex dishwasher i20 error myself?

Yes, you can check and clean the filter, sump area, and external drain hose for blockages.

How much does it cost to fix i20 error?

The estimated repair cost for the i20 error ranges from $100 to $350, including parts and labor.

When should I call a technician for i20?

Call a technician if drainage issues persist after cleaning, if the drain pump is noisy, or if water remains standing.

Sources & References

Data last verified: 2026-07-01

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