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Error Code

Kenmore Refrigerator Er CO Error Code

Plain-language guidance for Kenmore code Er CO 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 Er CO for Kenmore Refrigerator — confirm the model series before you act.

Lena Hart Written by Lena Hart Appliance Repair Content Specialist Published October 20, 2026

Content status Verified

Error code Er CO
Appliance Refrigerator
Quick answer

Er CO on 795-prefix Kenmore bottom-freezer refrigerators is a communication error between main board and display board.

Model compatibility

Kenmore reuses codes across series and model years, so Er CO 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

Communication error between main board and display board.

Er CO on a 795-prefix refrigerator

A Kenmore 795-prefix bottom-freezer refrigerator that displays Er CO has a communication error between the main board and the display board.

What the manual lists

The parts named with this code are the display control board, the power control board and the wiring harness. Owner steps are not spelled out, so a technician should look at the link between the two boards. If you handle the unit at all, unplug it first.

Related codes

Er CF is a condenser fan motor code that also lists the power control board. Er FF covers the evaporator fan.

Kenmore refrigerator service in Los Angeles

If Er CO keeps showing, call (310) 554-8899 about Kenmore refrigerator repair in Los Angeles. Have the code, the model number and what you already tried ready.

Source: Sears PartsDirect – Kenmore 795 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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