Delonghi Dishwasher Error E1

⚡ Quick Answer: The Delonghi dishwasher E1 error indicates a water leakage detection issue, often resulting in a continuous beeping sound and flashing display lights.... ✅ DIY Fixable

What Does Error E1 Mean?

The Delonghi dishwasher E1 error indicates a water leakage detection issue, often resulting in a continuous beeping sound and flashing display lights. This error typically occurs when the machine is unable to fill with water due to insufficient water supply or a problem with the water level sensing system. Ensuring adequate water flow and checking for blockages can often resolve this issue.

Common Symptoms:

  • Dishwasher stops and displays E1
  • Cycle won’t start due to lack of water
  • Dishwasher does not fill with water

Possible Causes

  • Insufficient water supply (low flow/pressure) (medium)
  • Water level sensing/pressure switch issue (low)

How to Fix Error E1

DIY Fix Check and ensure adequate water supply

  1. Make sure the cold water tap supplying the dishwasher is fully open.
  2. Check household water pressure to ensure it’s not unusually low.
  3. Inspect the water inlet hose for kinks or bends and straighten if necessary.

DIY Fix Clean inlet filter and hose

  1. Turn off dishwasher and water supply.
  2. Locate the water inlet hose connection and remove the inlet filter screen if present.
  3. Rinse the filter under running water to remove debris.
  4. Reconnect securely and test dishwasher.

Technician Only Inspect internal water level sensor / pressure switch

  1. Disconnect dishwasher from power and water.
  2. Access the internal water level sensing system/flow meter.
  3. Test and clean pressure switch ports; replace faulty sensors as needed.

Parts needed: Water level pressure switch or flow meter, Seals or gaskets

🛑 When to Call a Pro:
  • Error persists after inlet/filters cleaned and water supply confirmed
  • Signs of internal leak or component damage
  • Unusual noises or flooding during attempts to fill

Technical Specifications

wattage 1500W
component Leakage sensor
resistance 5-15 ohms
part_number DLS-001
voltage_rating 120V AC

Common Questions

What does E1 error mean on delonghi dishwasher?

E1 error indicates a water leakage detection issue and prevents the dishwasher from filling with water.

Can I fix delonghi dishwasher E1 error myself?

Yes, you can check the water supply, clean the inlet filter, and inspect the water inlet hose for kinks.

How much does it cost to fix E1 error?

The estimated repair cost for the E1 error is between ¥5,000 and ¥20,000, including parts and labor.

When should I call a technician for E1?

Call a technician if the error persists after cleaning, or if you notice internal leaks, unusual noises, or flooding.

Sources & References

Data last verified: 2026-04-23

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