Written by
Elena Marsh Appliance Care EditorPublished October 29, 2026
VERIFIED
Error codeCF
ApplianceRefrigerator
On a Kenmore refrigerator with a model number starting 106, CF turns up on the freezer display. It reports that the user interface control is no longer talking to the main control board.
Steps from the manual
Cut power by unplugging the refrigerator.
Check the harness connections on the user interface control and on the main control board. Reconnect any wires that came loose.
If every connection is sound, put in a new user interface control first.
When CF is still showing after that, the main control board is the part to replace.
Related codes
Er CO: a similar board-to-board communication error on another series.
C: a compartment thermistor failure on the same 106 list.
Kenmore refrigerator service in the San Francisco Bay Area
Still seeing CF once the connections are checked? Phone Kenmore refrigerator repair about (415) 825-6393 in San Francisco. Mention the model number and which connections you looked at.
Model compatibility: Kenmore reuses codes across series and model years, so CF 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 main control board and the user interface control have lost communication.
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.
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Book a repair online or call us — clear estimates and approval before any repair work begins.
