Kenmore Dryer Error Code F31 — Low L2 Voltage
What this means
Error F31 means the dryer is detecting that the L2 leg of its 240-volt supply is below 30 volts. A 240-volt dryer uses two 120-volt legs (L1 and L2). If one circuit breaker has tripped or a wire connection is loose, the dryer may power on but not heat, because the heating element needs both legs.
Step-by-step fix
4 stepsCheck the circuit breakers
Go to your electrical panel and check the two breakers for the dryer. One may be tripped. Reset both breakers by flipping them fully off and then back on.
Dryer circuits use double-pole breakers — both halves must be on.
Verify both breakers are on
Even if neither appears tripped, turn both off and back on. A half-tripped breaker may look normal.
Check the outlet
If possible, test the dryer outlet with a multimeter. You should see 240V across the two hot legs.
Call an electrician
If the breakers are on and voltage is still low, the wiring from the breaker panel to the outlet may have a loose connection.
When to call a professional
If resetting the breakers does not fix the issue, an electrician needs to check the wiring.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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