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LG Dishwasher E1 error code

On LG dishwashers, error E1 indicates: Leak detected (same family as AE) — water reached the float switch in the base pan. Some displays show this as AE. Start with a 5-minute power reset at the breaker, then follow the dishwasher-specific checks below before ordering replacement parts for E1.

Reviewed August 2025 · sources below

Safe to keep using?

Stop using

Severe overheating requires stopping use until the cause is identified.

  • • Unplug the appliance before inspection.
  • • Turn off the water supply before disconnecting hoses.
  • • Do not continue using the appliance until the cause is identified.

Next step

Still seeing E1?

Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.

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How to fix E1

  1. Unplug the dishwasher or turn off power at the breaker before inspecting any components.
  2. Reset LG E1: leave power off for 5 minutes, restore power, then restart. Confirm whether E1 returns.
  3. Check the most common cause for E1: Leak detected (same family as AE) — water reached the float switch in the base pan.
  4. Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings.
  5. If a reset and basic checks don't clear the code, the fix often requires a replacement part (see recommended parts below).
  6. Reassemble, restore power, and run a test cycle. If E1 returns, the faulty component likely needs replacement.

Call a pro when: Call a technician if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.

What E1 means

Leak detected (same family as AE) — water reached the float switch in the base pan.

DIY Difficulty
1 /10EASY

This is a straightforward homeowner task with basic tools and low risk.

Time: 15–30 minutes
Risk: Low
Skill: Beginner
Tools: Screwdriver, Adjustable pliers, Flashlight

Likely causes

Most likelyUser-serviceable issue

Many codes resolve with cleaning, resetting, or reconnecting.

Check: Power-cycle the appliance and check for obvious blockages or loose connections.

Est. cost: $0–$0

PossibleFailed component

Wear or electrical failure of an internal part.

Check: If basic checks fail, the faulty component likely needs replacement.

Est. cost: $0–$75

Repair or Replace?

DIY repair

$26–$49

Professional repair

$191–$259

Comparable replacement

$659–$891

Our recommendation

REPAIR LIKELY MAKES SENSE

REPAIR LIKELY MAKES SENSE. Professional repair ($191–$259) is well below replacement cost.

Actual repair and replacement costs vary by model, location, labor rate, and condition.

Professional assistance recommended

This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.

Questions about E1

What does E1 error code mean on a LG dishwasher?

Leak detected (same family as AE) — water reached the float switch in the base pan.

How do I reset LG dishwasher E1?

Unplug the dishwasher or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored E1 after a glitch, but the code will return if the underlying fault is still present.

What part do I need for LG E1?

Often yes — error E1 frequently points to a failed component. Check the recommended parts below for direct replacements.

Can I fix LG error E1 myself?

Many E1 errors can be fixed DIY if you're comfortable with basic tools. Start with the reset and steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.

Other LG Dishwasher codes

Prevent this problem next time

  • Follow manufacturer maintenance schedule
  • Address small issues before they worsen

Sources

Manufacturer meaning

Leak detected (same family as AE) — water reached the float switch in the base pan.

FixApplianceCode guidance

Start with basic checks for LG E1 before ordering parts.

Source type: Part database

Source: ModelPartFinder + FixApplianceCode editorial

Last reviewed: 2026-10-24

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