Samsung · Dishwasher Moderate
1E — / IE — Filter clogged / heater fault
On Waterwall models, 1E (also shown as IE) means water is not passing through the filter — the fine filter is clogged. On rotary-spray models the same code can indicate a high-temperature heater error.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Easy
- Verified against
- samsung.com ↗
How to fix it
- Power off at the breaker for 1 minute, restore power and try a Normal cycle to confirm the code returns.
- Pull the lower rack and remove the filter assembly (twist counter-clockwise on most models).
- Rinse the fine and coarse filters under hot water with a soft brush; clear the sump opening of debris.
- Reinstall the filter — make sure it is fully seated and locked or the dishwasher will throw codes.
- Run a Self Clean / hot rinse with no dishes to verify the code clears.
- If code persists on a rotary model, test the heater for continuity (~10–40 ohms) and the thermistor; replace if open/shorted.
Why it happens
Typical signs: 1E or IE on display · Cycle stops with standing water · Dishes come out dirty · Wash spray weak or absent
- Clogged fine filter at sump Food debris, grease, glass shards blocking the fine mesh under the lower spray arm.
- Clogged pump inlet Debris past the filter lodged in the circulation pump inlet.
- Heater short or open (rotary models) Heating element failed or wiring fault triggers high-temp heater fault.
- Failed temp sensor Thermistor reads out of range and trips the heater protection.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Samsung dishwasher codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: samsung.com.