⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: E31 Difficulty: Hard
Problem: Moisture sensor frequency is too high.
How to Fix E31 Error (Step-by-Step)
- Unplug the dryer from the power outlet and confirm the error stays cleared during a full test cycle.
- Open the dryer door and locate the two metal moisture sensor bars (Part 134786110) inside the drum, usually near the lint filter housing.
- Clean the surfaces of the sensor bars thoroughly with a cotton ball or soft cloth dampened with rubbing alcohol. This removes any film from fabric softener sheets or detergents.
- Trace the wires from the sensor bars back to the main control board. Check the wire harness (Part 5304515376) for any loose connections, breaks, or damage.
- If cleaning the sensors and checking the wiring does not resolve the issue, the fault is likely with the main control board (Part 134994700).
- Access and replace the main control board, carefully transferring all wire connections to the new board.
- Reassemble the dryer and test a sensor-dry cycle and confirm the error stays cleared during a full test cycle.
- 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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