Reviewed diagnostic family

Frigidaire range F40 / F41: cooktop lockout fault

Frigidaire lists F40 / F41 as a cooktop lockout fault; if it returns after one controlled reset, service is appropriate.

FrigidaireRange / ovenReviewed 2026-09-11

What this guide covers

Error codes: F40, F41

This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.

Continue this exact diagnostic

Safe troubleshooting sequence

This reviewed path begins with a direct owner-safe action or status check rather than a branching question. Follow the step below, then use the interactive diagnostic if the condition persists.

  1. Disconnect appliance power for about 30 secondsUse the breaker or plug only if it is safely accessible.
  2. Restore power and retry onceIf the code returns, do not keep cycling power.

Reviewed outcomes

Try one manufacturer-supported reset

Frigidaire lists F40 / F41 as a cooktop lockout fault; if it returns after one controlled reset, service is appropriate.

Evidence strength: Strong

The code returned after the reset

A persistent control, sensor, or communication fault requires model-specific diagnosis.

Evidence strength: Strong

When professional diagnosis is the safer next step

A persistent control, sensor, or communication fault requires model-specific diagnosis.

Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.

Repair or replace?

A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.

Manufacturer sources

Frigidaire

Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.

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