⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: E4 Difficulty: Moderate
Problem: Humidity Sensor Failed.
How to Fix E4 Error (Step-by-Step)
- Unplug the dryer from the power outlet for safety and confirm the error stays cleared during a full test cycle.
- Locate the humidity sensor inside the dryer drum, usually near the lint filter housing. It consists of two metal strips.
- Clean the sensor strips with a soft cloth and rubbing alcohol to remove any residue or fabric softener buildup.
- Inspect the wiring connected to the humidity sensor. Ensure the connections are secure and not damaged.
- If cleaning and checking the wiring doesn’t resolve the issue, the humidity sensor may need to be replaced.
- For persistent issues, the main control board may be at fault and require testing and potential replacement by a professional.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Replacement Part
Verified Compatible Alternatives:
- 134786110
- 134994700
- 5304515376
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Most DIY parts are $50–$250. If you have a quote, use the total.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Electrolux error codes: Electrolux Error Codes
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