E31
What code E31 means on a Electrolux tumble dryers, what causes it, and which part to check first.
● SEVERITY: HIGH
Electrolux E31 means: Moisture sensor frequency too high. The documented cause is: Check for any metal or foreign objects stuck between the moisture sensor bars. If you find nothing stuck between the moisture sensor bars, unplug the dryer and check the moisture sensor wire harness for…
What E31 means
Moisture sensor frequency too high
The display shows E31 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by applianceaid.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Check for any metal or foreign objects stuck between the moisture sensor bars |
| If you find nothing stuck between the moisture sensor bars, unplug the dryer and check the moisture sensor wire harness for damage |
| Replace the wire harness if damaged |
| If the wire harness is intact, replace the electronic control board |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine before removing any panel. Lint is flammable: never run a dryer with the filter removed, and clear the duct if the code points to airflow.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does E31 mean on a Electrolux?
Moisture sensor frequency too high The documented cause is: Check for any metal or foreign objects stuck between the moisture sensor bars. If you find nothing stuck between the moisture sensor bars, unplug the dryer and check the moisture sensor wire harness for damage. Replace the wire harness if damaged. If the wire harness is intact, replace the electronic control board
Can I fix E31 myself?
It depends on the part involved: Check for any metal or foreign objects stuck between the moisture sensor bars. If you find nothing stuck between the moisture sensor bars, unplug the dryer and check the moisture sensor wire harness for damage. Replace the wire harness if damaged. If the wire harness is intact, replace the electronic control board Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Electrolux use other codes on this appliance?
Yes: we document 46 other codes for Electrolux on this tumble dryers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

