KitchenAid Dryer Error Code F31 — Low L2 Voltage
What this means
The F31 error code on KitchenAid dryers indicates low voltage on the L2 (second leg) of the 240-volt power supply. Electric dryers require 240 volts supplied by two 120-volt legs. If one leg drops significantly or fails, the dryer will tumble but the heating element won't work, or the dryer may not work at all. This is usually caused by a tripped single-leg breaker, a loose connection at the outlet, or a faulty power cord.
Step-by-step fix
3 stepsCheck the circuit breaker
Look at the dryer's circuit breaker in the electrical panel. A 240V dryer uses a double breaker — sometimes one side can trip while the other stays on. Turn both sides fully off, then back on.
Both breaker handles should be linked together. If one trips independently, the breaker may need replacement.
Check the power cord and outlet
Unplug the dryer and inspect the power cord for damage. Check that the cord prongs aren't bent or corroded. Also check the outlet for scorch marks or loose fit.
Test the outlet voltage
Use a voltage tester to measure the outlet. You should read approximately 240V across the two hot terminals and 120V from each hot terminal to neutral/ground.
If one leg reads significantly lower than 120V, the issue is in the house wiring.
When to call a professional
If the outlet voltage is wrong or the breaker keeps tripping, call a licensed electrician. This is a household electrical issue.
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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