Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codert Lo/Hi
ApplianceRefrigerator
Showing rt Lo or rt Hi, a Kenmore Trio bottom-freezer refrigerator (111 prefix) reports that its ambient temperature sensor is failing, with a reading that is low or high.
Owner steps
Unplug the unit.
Inspect the leads running from the ambient sensor to the control board.
Mend a lead that has broken.
Technician steps
Resistance of the ambient circuit is read at the board. Anything outside 1,000 to 40,000 ohms means a new sensor, and once repaired the display resets.
When rt will not leave the display, a Bay Area technician can test the sensor circuit on your Kenmore. Note the code, the 111 model number and any damaged wiring, then use Kenmore refrigerator repair or call (415) 825-6393 for San Francisco visits.
Model compatibility: Kenmore reuses codes across series and model years, so rt 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 ambient 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?
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.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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Book a repair online or call us — clear estimates and approval before any repair work begins.
