Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error coder1 Lo/Hi
ApplianceRefrigerator
The refrigerator compartment temperature sensor of a Kenmore bottom-freezer Trio refrigerator, model numbers starting 111, is failing when the display shows r1 Lo or r1 Hi. Once the fault is repaired the code resets.
Owner steps from the manual
Unplug the refrigerator.
Examine the wiring that connects the refrigerator temperature sensor to the control board for damage.
Repair any wire that is broken.
Technician measurement
Next the manual takes a resistance reading through the sensor circuit at the control board. A reading outside 8,000 to 40,000 ohms means the sensor gets replaced.
If r1 stays after you have checked the wiring, a technician in San Francisco can run the sensor circuit test on your Kenmore. Have the code, the 111 model number and what you found ready, and use Kenmore refrigerator repair or (415) 825-6393.
Model compatibility: Kenmore reuses codes across series and model years, so r1 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
The refrigerator compartment temperature sensor has failed 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?
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