What E 4 means on your Electrolux dryer (electrolux e 4 error)
An electrolux e 4 error on your Electrolux dryer means the humidity sensor used to judge how dry the load is has failed. The dryer will still finish out the current cycle, but cycle-end timing based on moisture sensing will not be reliable until the sensor issue is addressed.
Symptoms
The signs below help confirm you are dealing with this condition rather than a different problem on your Electrolux dryer. You may notice one of them or several together, and they can appear gradually or suddenly after a power event, a wash or cook cycle, a spill, or recent installation or service.
- “E 4” shows on the display during or after a cycle
- The dryer finishes the current cycle normally despite the code
- Auto-dry cycles may run longer or shorter than expected afterward
- The code may reappear on subsequent cycles
Common causes
Several different problems can produce these symptoms. Working through the most likely causes in order separates a quick owner-level check from a problem that needs trained service and the correct Electrolux parts.
- Failed humidity sensor — the sensor is not providing a reliable moisture reading
- Sensor contamination — fabric-softener residue or lint buildup on the sensor contacts is interfering with the reading
Troubleshooting steps you can try
Work through these checks in order before calling for service. Stop wherever you are unsure, or where mains voltage, gas, a hot oven cavity, water, or a sealed component is involved, and hand the rest to a qualified technician.
- Let the current cycle finish normally — the dryer completes the load despite the code.
- If accessible, wipe down the humidity sensor contacts (often located inside the drum) to remove residue buildup.
- Run a cycle and see whether “E 4” reappears.
- If the code recurs, contact service rather than continuing to rely on auto-dry timing.
Parts a technician may replace
Depending on what the diagnosis shows, a technician may inspect, test, or replace the humidity sensor. The correct part for your Electrolux dryer is matched from the model and serial number, and genuine OEM components are fitted through trusted parts suppliers rather than generic substitutes so performance, safety, and the appliance long working life are all protected. Confirming the failed part before ordering avoids replacing more than the problem actually requires.
When to call a technician
E 4 that recurs after cleaning the sensor contacts needs an experienced technician to test and, if needed, replace the humidity sensor. This condition is rated Medium severity, so there is no emergency — but if the same E 4 keeps returning after the checks above, a technician should confirm the cause before any part is replaced. As an independent repair service we are not affiliated with the manufacturer, and we work only with experienced, skilled technicians and genuine OEM parts from trusted parts suppliers, with our workmanship backed by a 30-day labor warranty. When you book, have your Electrolux dryer model and serial number ready so the right part for your exact build can be matched before the visit and the E 4 condition resolved in as few trips as possible.
Related help and Electrolux resources
If the E 4 condition keeps returning after these checks, book Electrolux dryer repair, browse our dryer error-code guides and step-by-step repair guides, or schedule service in your area on our locations page. See also the related EF1 ventilation-blockage code. For full manufacturer specifications and model lookup, visit electrolux.com.
