Kenmore Dryer Error Code F31: Meaning and Fix

F31
How F31 appears on a Kenmore dryer display.
Kenmore dryer thermal fuse part photo, the component usually involved when F31 (moisture sensor / airflow fault (whirlpool-built)) appears
AppliancePartsPros.com product photo

Reading the dryer display

On a dryer the code shows in the time-remaining window or as blinking status lights. Write down the characters before you press anything, because starting a new cycle usually clears the display. Check the model-number prefix first: the same Kenmore code can mean different things depending on the manufacturer.

Kenmore is a private label, and the factory that built your unit decides which fault codes it shows. The first digits of a Kenmore model number (110, 417, 665, 795, 796 and so on) tell you whether Whirlpool, LG, Electrolux or Frigidaire made it. Check the model label on your unit before using any chart.

What causes F31

How to fix it

  1. Unplug the dryer and clean the lint screen and the housing underneath it.
  2. Pull the dryer forward, disconnect the vent hose and clear lint from the hose, wall duct and exterior flap.
  3. Clean vent and test sensor strips.
  4. Check the vent is rigid or semi-rigid metal, short, and free of sags and kinks.
  5. Clean out the blower housing if you can access it, then reconnect the duct.
  6. Run a timed dry and confirm hot air flows freely at the outside vent.

Parts you may need

PartPart no.Buy
Dryer Thermal FuseWP3392519Find part

Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.

Questions

What does error F31 mean on a Kenmore dryer?

The dryer detects a problem in its exhaust or sensor circuit. Kenmore sells units built by several manufacturers, so the code table that applies depends on who made your model; use the model number to confirm.

Can I keep using my dryer while F31 is showing?

Stop using it until the vent is clear; restricted airflow overheats the dryer and is a real fire risk.

How do I clear F31, and can I fix it myself?

Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. This one is usually a do-it-yourself job with basic tools.

Other Kenmore dryer codes

Sources

Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.

Applies to models including Kenmore Elite 796 series (LG-built), Kenmore 110 series (Whirlpool-built), Kenmore 417 series (Frigidaire-built).