Error code · Range

F91 on a Frigidaire Range: Too Many Unlock Attempts

Medium · inspection needed

Code: F91
Appliance: Range
Brand: Frigidaire
Warranty: 30-day workmanship

What F91 means

On Frigidaire freestanding gas and electric ranges built since about 2004, such as the PLEF398DC and GLEF378DS, F91 means the control tried to unlock the oven door too many times without success. It keeps count, and when the maximum is reached it stops trying and shows F91. You may find the oven door stuck shut after a self-clean, or the oven refusing to start.

Common causes of F91

The latch motor that fails to complete an unlock
The latch switch reporting the position
Wiring to the latch
Door alignment that makes the latch bind

✓ One safe check you can try

1. Let the oven cool. 2. Turn the oven's power off at the outlet or breaker for up to 30 seconds and on again. 3. See whether the door releases, and note whether the code comes back. 4. Do not pry at the door, since that can bend the latch.

! Why to stop there

F91 is a count of failed tries, so the question is what keeps an unlock from finishing.
We check the latch movement, the switch and the door alignment.
You see a written price first, and we say so plainly if an older range is not worth it.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Range codes

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F91F91 questions

Why do both F90 and F91 exist?

F90 is about how long an unlock took. F91 is about how many times it tried. Both point at the latch, but the test differs, so we read the code before we start.

Can door alignment cause F91?

Yes. A door that binds on the latch can make unlocking fail repeatedly. We check how the door sits as well as the latch motor and switch.

Is an older range with F91 worth fixing?

Often yes. We tell you plainly before we begin if it is not, and you see a written price first, so the decision is yours.

Book a visit

Still seeing F91?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 844-8518