Written by
Hannah Ostrowski Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeF5
ApplianceRange
Why F5 appears
The watchdog circuit was running when it ought to be off. F5 is a code that only older Frigidaire electronic oven controls (EOC) use.
What sets it off
Someone selects Bake, Broil or Clean.
The microprocessor tests whether the EOC relay operates.
The relay fails that test, and F5 is displayed.
Technician checklist
A shorted keypad.
Pushbuttons that bind in the glass and stick.
If both are clear, a replacement EOC.
Same-era codes
An absent 60 Hz time base is F6. F7 is a watchdog fault on the lock relay instead. Lock motor switch positions are F8 / F9.
Frigidaire range repair, San Francisco and the Bay Area
For an older oven that shows F5, book through (415) 319-6371. Mention which cooking mode was chosen when it appeared and give the model number. The Frigidaire range repair page has more.
Model compatibility: Frigidaire reuses codes across series and model years, so F5 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
F5 means the watchdog circuit was active when it should be disabled, after the EOC relay failed a test.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Frigidaire appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Frigidaire appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
