Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeF1 Lo/Hi
ApplianceRefrigerator
Lo or Hi after F1 tells you whether the reading is low or high: the code F1 Lo or F1 Hi belongs to 111-prefix Kenmore bottom-freezer refrigerators and says the temperature sensor in the freezer has failed.
Working through it
Cut power at the plug.
Follow the sensor’s wires to the control board and look for damage.
Mend any broken wire.
Wiring fine? Then the circuit gets measured from the board. A reading beyond the manual’s range means a new freezer temperature sensor.
Measuring takes a meter, so it is a technician’s task. Only the freezer temperature sensor is listed as a part, and the codes reset once the repair is done.
When the wiring looks fine and F1 Lo or F1 Hi remains, our Kenmore refrigerator repair page covers what happens next; (415) 825-6393 is the number for San Francisco and the Bay Area. Have the F1 code, the complete model number and what you saw at the sensor wiring ready.
Model compatibility: Kenmore reuses codes across series and model years, so F1 Lo/Hi 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
F1 Lo/Hi is a freezer compartment temperature sensor fault with a low or high reading.
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.
Two flickers then a pause on the main control board LED indicate an ambient temperature sensor failure on 111-prefix Kenmore top-freezer refrigerators.
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.
