Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error coderD Lo/Hi
ApplianceRefrigerator
The refrigerator defrost sensor of a Kenmore bottom-freezer Trio, model numbers beginning 111, is reported as failed by rD Lo or rD Hi. After repair the display resets.
Manual steps for the owner
Switch off power at the plug.
Inspect the leads from the defrost sensor to the control board for damage.
Fix any damaged lead.
Measurement by a technician
Resistance is then read across the defrost sensor circuit, starting at the control board. A value falling outside the range of 8,000 to 40,000 ohms leads to sensor replacement.
Look-alike codes
r3 concerns the heater, the other half of defrosting.
r1 Lo/Hi uses the same Lo and Hi wording for the compartment sensor.
Should rD come back on your Kenmore, a San Francisco technician can test the defrost sensor circuit in your home. Keep the display reading and the model number nearby when you book at Kenmore refrigerator repair or on (415) 825-6393.
Model compatibility: Kenmore reuses codes across series and model years, so rD 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 defrost 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.
