Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeF8
ApplianceRange
What F8 covers
Only one fault sits behind F8 on a Kenmore Elite 721 electric range: the part that tracks upper oven temperature has gone bad. Elsewhere in this series, F1 or F2 may point at that very sensor too.
How the part is judged
Power comes off first, by unplugging the range.
A meter reads the resistance across the sensor.
At 77 degrees F the expected value is 1,090 ohms.
A figure more than 100 ohms away from that value condemns the sensor, and a new one is fitted.
Owner share
Metering belongs to a technician. For an owner the useful moves are pulling the plug and keeping the displayed code for the visit.
San Francisco households with a Kenmore Elite 721 range showing F8 can reach us at (415) 825-6393 for Kenmore range repair. Mention the model number and whether F1 or F2 also appeared.
Model compatibility: Kenmore reuses codes across series and model years, so F8 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
F8 means the upper oven temperature sensor is defective on Kenmore Elite 721-prefix electric ranges.
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 Kenmore 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 Kenmore appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
