Lemair Dishwasher Error E1

⚡ Quick Answer: The Lemair dishwasher E1 error indicates a drainage issue, often resulting in the appliance stopping mid-cycle. You may hear a persistent humming soun... ✅ DIY Fixable

What Does Error E1 Mean?

The Lemair dishwasher E1 error indicates a drainage issue, often resulting in the appliance stopping mid-cycle. You may hear a persistent humming sound, and the display will show a water level warning. This error can stem from water supply interruptions, blockages, or problems with the drainage system and water level sensors. Basic troubleshooting, such as checking the water supply valve and cleaning the inlet filter, can help resolve the issue.

Common Symptoms:

  • Dishwasher stops mid cycle with E1 displayed
  • Dishwasher fails to fill with water
  • Dishwasher cannot drain properly
  • Water level sensor or float may be triggered

Possible Causes

  • Water supply interruption or blockage (community pattern) (medium)
  • Drainage or water level sensor issue (community pattern) (medium)

How to Fix Error E1

DIY Fix Basic checks for water supply and drainage

  1. Confirm the water supply valve to the dishwasher is fully open.
  2. Inspect the water inlet hose for kinks, bends, or obvious blockages.
  3. Check and clean the dishwasher’s inlet filter (if accessible) for debris.
  4. Ensure the drain hose is free from obstructions and positioned correctly.
  5. Clean the dishwasher’s internal filter and lower sump area of food debris.

DIY Fix Reset the dishwasher

  1. Turn off the dishwasher power at the mains or unplug it.
  2. Wait 5–10 minutes to allow any internal electronics to reset.
  3. Restore power and run a short test cycle to see if the E1 code clears.

Technician Only Inspect and test internal components

  1. Perform continuity tests on the water level/pressure sensor and inlet valve.
  2. Check the drain pump and associated sensors for proper operation.
  3. Evaluate wiring harnesses for loose or damaged connections.
  4. Replace defective components such as the water inlet valve, pressure switch, or drain pump as needed.

Parts needed: Water inlet valve, Water level/pressure sensor, Drain pump, Wiring harnesses

🛑 When to Call a Pro:
  • If water supply pressure is confirmed normal and basic maintenance checks do not resolve the problem
  • If water leakage is observed under the dishwasher
  • If error persists despite reset attempts

Technical Specifications

wattage 50W
component Drain Pump
resistance 10-20 ohms
part_number Lemair DP12345
voltage_rating 240V AC

Common Questions

What does E1 error mean on Lemair dishwasher?

E1 error signifies a drainage issue, causing the dishwasher to stop mid-cycle.

Can I fix Lemair dishwasher E1 error myself?

Yes, you can perform basic checks like ensuring the water supply is open and cleaning the inlet filter.

How much does it cost to fix E1 error?

The estimated repair cost ranges from ¥8,000 to ¥30,000, depending on parts and labor.

When should I call a technician for E1?

Call a technician if water supply is normal but the error persists, or if there's water leakage.

Data last verified: 2026-07-01

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