Frigidaire · Oven Minor

F40 — Frigidaire Range/Oven F40 / F41 — Cooktop Lock Out

F40 (and F41) indicate the cooktop is locked out — usually the control lock is engaged.

Keep using it?
Yes — fix when convenient
DIY difficulty
Easy
Verified against
owner.frigidaire.com ↗

How to fix it

  1. Disable the control lock per your model (often hold the Lock button for a few seconds).
  2. If F40/F41 persists with the lock off, reset at the breaker; the control may need service.

Why it happens

Typical signs: Cooktop will not turn on · F40 or F41 on the display

  • Control lock engaged The lock/child-lock feature is on.
  • Touch/control fault Less commonly, a control or touch fault.

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.

  • Frigidaire Oven Control Board (EOC) Common replacement
    Amazon →

More Frigidaire oven codes

F0 F0 — Electronic Oven Control (EOC) Failure F1 F1 — Shorted Keypad / Control Failure F10 F10 — Runaway Temperature F11 F11 — Shorted keypad button F12 Range/Oven F12 — Control Microprocessor Fault F13 Range/Oven F13 — Control Memory (EEPROM) Failure

All Frigidaire codes → All oven codes →

Frequently asked questions

What does the F40 code mean on a Frigidaire oven?

F40 (and F41) indicate the cooktop is locked out — usually the control lock is engaged.

What causes the F40 code on a Frigidaire oven?

Control lock engaged: The lock/child-lock feature is on. Touch/control fault: Less commonly, a control or touch fault.

Is it safe to keep using a Frigidaire oven with a F40 error?

Yes — fix when convenient. This is rated a minor-severity fault.

How do I fix F40 on a Frigidaire oven?

Disable the control lock per your model (often hold the Lock button for a few seconds). If F40/F41 persists with the lock off, reset at the breaker; the control may need service.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: owner.frigidaire.com.