F91 Moderate Hard — consider a tech

GE Oven F91 — Lock Motor Direction / Drive Fault

GE Oven · Error code F91

What F91 Means

Door lock motor failed to drive the cam in the correct direction within the expected time. Self-clean is blocked.

Symptoms

  • F91 when starting clean cycle
  • Lock motor runs but cam doesn't move
  • Clean cycle aborts

Common Causes

1
Worn lock motor gears

Motor spins but gear teeth are stripped.

2
Cam binding from grease/debris

Cam can't rotate through full travel.

3
Failed control board drive circuit

Wrong polarity sent to motor.

How to Fix It

  1. Power off at the breaker.
  2. Access the door lock assembly and try moving the cam by hand — should rotate smoothly.
  3. Clean debris or grease from cam path.
  4. If the motor runs but cam doesn't move, replace the lock assembly.
  5. If lock assembly is good, replace the control board.

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 GE oven door lock assembly View on Amazon→

More GE Oven Codes

dF dF — Door Latch Switch Fault F0 Range/Oven F0 — Keypanel Problem F1 F1 — Control Failure / Runaway F2 F2 — Oven Over-Temperature F3 F3 / F4 — Oven Sensor Open or Shorted F30 F30 — Open Probe / Meat Probe Circuit

All GE codes → All oven codes →

Verified against manufacturer documentation: geappliances.com

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