F31 Serious Hard — consider a tech

KitchenAid Dryer F31 — Motor Drive System Fault

KitchenAid Dryer · Error code F31

What F31 Means

The control detected an error driving the drum motor — often a motor, capacitor, or control fault.

Symptoms

  • F31 displayed
  • Drum will not turn
  • Humming but no spin
  • Dryer trips breaker

Common Causes

1
Failed drive motor

Open winding or seized bearing

2
Failed motor start capacitor (on some models)

Capacitor lost capacity

3
Belt off and idler engaged motor switch

Broken belt removed load and confused control

4
ACU motor circuit fault

Damaged relay or driver on the main board

How to Fix It

  1. Unplug the dryer and remove the top/front to access the belt.
  2. Inspect the drive belt — replace if broken or off the pulley.
  3. Spin the motor by hand; if seized or noisy, replace.
  4. Test motor windings per service manual specs.
  5. Replace ACU if motor tests good and belt is intact.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Dryer drive belt View on Amazon→ Common replacement Dryer drive motor View on Amazon→

More KitchenAid Dryer Codes

AF AF — Airflow Restriction E1 E1 — Thermistor Open Circuit E2 E2 — Thermistor Shorted F01 F01 — Main Control Board Failure F22 F22 — Exhaust Thermistor Fault F23 F23 — Exhaust Thermistor Shorted

All KitchenAid codes → All dryer codes →

Verified against manufacturer documentation: kitchenaid.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.