Samsung Dishwasher 1E error code

On WaterWall models this means the fine filter is clogged and water cannot get through it. On rotary (spray-arm) models it means the inside of the dishwasher got too hot - a high-temperature heater error.

Also shown as: 1E, IE

Last updated: October 6, 2026

Quick answer: Samsung dishwasher error code 1E: clogged filter or overheating. The most common cause is clogged fine filter at the bottom of the tub (WaterWall models). Try this first — clean the fine filter (WaterWall models). If that does not clear it, power-cycle at the circuit breaker (rotary models).

What causes the 1E error?

  • Clogged fine filter at the bottom of the tub (WaterWall models)
  • Excessive water temperature inside the tub (rotary models)
  • Heater running too long or out of control
  • Blocked spray or reflector restricting water flow
  • Failed thermistor misreading temperature

How to fix Samsung 1E — step by step

Work through these in order, from simplest and safest first. Stop as soon as the code clears.

  1. Clean the fine filter (WaterWall models)
    Remove the fine filter from the bottom of the dishwasher, rinse it under running water, and clear trapped food. A clogged filter is the number one cause of 1E on WaterWall models.
  2. Power-cycle at the circuit breaker (rotary models)
    Switch the dishwasher's breaker off for 30 seconds, then back on. This resets the heater control after an over-temperature trip.
    Safety warning: Use the breaker, not just the dishwasher's power button, for a full reset.
  3. Run an empty Normal cycle with detergent
    Empty the dishwasher, fill the detergent drawer, and run a Normal cycle. Samsung prescribes this test - if 1E returns on the empty cycle, the heater circuit needs service.
Related guide: Dishwasher troubleshooting — fix common problems, with links to every dishwasher error code we cover.

When to call a technician

Stop and call a qualified technician if any of these apply:
  • 1E returns after cleaning the filter
  • 1E returns on an empty test cycle
  • The heater or thermistor needs testing
  • The dishwasher overheats repeatedly

Frequently asked questions

How do I know if I have a WaterWall or rotary model?

WaterWall models have a bar-like reflector that slides along the bottom instead of spinning spray arms. Check your model number or look inside the tub.

Can hard water cause 1E?

Indirectly. Mineral buildup on the filter and heater makes both clogging and overheating more likely, so descale and clean the filter regularly.

1E keeps coming back after cleaning the filter. Now what?

On a WaterWall model that means the problem is deeper - likely the heater or thermistor. On a rotary model it confirms a heater fault. Either way, call for service.

Sources

Every meaning and fix above was checked against official manufacturer documentation:

FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.

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