Samsung 1E / IE: Filter Clog or Overheat

Medium severity

1E and IE are the same characters doing two different jobs: on a Waterwall-style Samsung dishwasher it's a clogged-filter warning, while on an older rotary spray-arm model the identical code flags overheating instead.

Applies to: Most Samsung DW-series dishwashers with digital displays; meaning differs slightly by internal wash system (Waterwall models: clogged filter error; Rotary/standard spray-arm models: high-temperature heater error)

What it means

Which one applies depends entirely on which wash system your model uses, so start by identifying that before assuming a cause. On Waterwall-style Samsung dishwashers, this indicates water isn't passing through the filter properly. On older rotary spray-arm models, the same code instead flags an overheating condition inside the tub.

Samsung's Waterwall models replace the usual rotating spray arms with a stationary reflector that channels a sheet of water back and forth across the bottom rack, so their filter sits directly in the flow path and clogs enough to trip this code more readily than a traditional rotary system would.

Common causes

• Clogged fine filter blocking normal water flow (Waterwall models)
• Debris built up in the filter housing
• An overheating condition from a stuck heating relay (rotary models)

What you can check yourself

1. Remove and thoroughly clean the fine filter at the bottom of the tub
2. Check for debris in the filter housing itself, not just the removable filter screen
3. Restart the dishwasher after cleaning to see if the code clears

Related

• Samsung dishwasher codes — full list of Samsung fault codes
• Samsung HE — heating error, the rotary-model interpretation of this fault family
• Samsung 5E / SE — drain error, worth ruling out on Waterwall models with slow flow
• Dishwasher Not Heating, Drying, or Sanitizing — symptom guide across brands

Sources

• Samsung dishwasher is displaying an error code | Samsung Support