Electrolux dryer E4: humidity sensor failed
Electrolux says the current cycle may finish and manual cycles may still operate, but recurring E4 requires service.
What this guide covers
Error codes: E4, E 4
This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.
Continue this exact diagnostic
Safe troubleshooting sequence
This reviewed path begins with a direct owner-safe action or status check rather than a branching question. Follow the step below, then use the interactive diagnostic if the condition persists.
- Finish only if the dryer is otherwise operating normallyStop immediately for smoke, burning odor, overheating, or abnormal behavior.
- Try a manual timed cycle once after the current cycleIf E4 continues, schedule service rather than replacing a sensor from the code alone.
Reviewed outcomes
Try the manufacturer-documented reset once
Electrolux says the current cycle may finish and manual cycles may still operate, but recurring E4 requires service.
Evidence strength: Strong
Electrolux dryer E4: humidity sensor failed returned after the retest
A recurring code needs model-specific diagnosis rather than repeated resets.
Evidence strength: Strong
When professional diagnosis is the safer next step
A recurring code needs model-specific diagnosis rather than repeated resets.
Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.
Repair or replace?
A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.
Manufacturer sources
Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.
Browse reviewed dryer error codes →
Browse all Electrolux troubleshooting guides →