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Error Code

Kenmore Refrigerator Code FD Lo / FD Hi Defrost Sensor

Plain-language guidance for Kenmore code FD Lo/Hi on Refrigerator — symptoms, safe checks, and when to call a technician.

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At a glance

Error code overview

A plain-language snapshot of FD Lo/Hi for Kenmore Refrigerator — confirm the model series before you act.

Daniel Reeves Written by Daniel Reeves Appliance Repair Content Specialist Published October 20, 2026

Content status Verified

Error code FD Lo/Hi
Appliance Refrigerator
Quick answer

FD Lo / FD Hi: freezer defrost sensor failure on Kenmore Trio bottom-freezer refrigerators with 111-prefix model numbers.

Model compatibility

Kenmore reuses codes across series and model years, so FD 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

Freezer defrost sensor failure (low or high reading).

Reading the display

The Lo or Hi after FD tells you the defrost sensor in the freezer gave a reading that was too low or too high. Models: Kenmore bottom-freezer Trio, numbers starting 111.

Do first

  • Pull the plug to disconnect power.
  • Inspect the wiring from the freezer defrost sensor to the control board.
  • Fix any broken wires.

Left to a technician

Measuring the sensor circuit from the control board and judging the result against the manual’s range comes next. If the sensor is out of range, it is replaced. The failure codes reset after the repair.

Nearby codes

Compare with F3 (freezer defrost heater failure) and F1 Lo/Hi (freezer sensor fault).

Service in the Miami, New York, Houston, Los Angeles and San Diego areas

Our line is (844) 747-3641. Give the code, the model number and what you found when you checked the wires. Browse the refrigerator repair information if you want more first.

Source: Sears PartsDirect – Kenmore 111 model bottom-freezer refrigerator error codes

Caution

Safety warning

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.

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