Kenmore Refrigerator Error ER-CO

⚡ Quick Answer: The Kenmore refrigerator error code ER-CO indicates a communication error between the main control board and the display/user interface board. This di... ✅ DIY Fixable

What Does Error ER-CO Mean?

The Kenmore refrigerator error code ER-CO indicates a communication error between the main control board and the display/user interface board. This disruption can lead to a non-cooling refrigerator and unusual humming sounds. If you encounter this error, it may signify a need for inspection or repair of internal electronic components.

Common Symptoms:

  • Error code ER-CO displayed on the fridge panel
  • Function disruptions tied to control/display interaction

Possible Causes

  • Internal communication failure between main board and display/control board (medium)

How to Fix Error ER-CO

DIY Fix Basic power reset

  1. Unplug the refrigerator from power.
  2. Wait approximately 5 minutes.
  3. Plug the refrigerator back in and observe if the ER‑CO code clears.

Technician Only Inspect and reseat communication harnesses and control boards

  1. Disconnect power to the unit.
  2. Remove access panels to locate the main control board and user interface board.
  3. Visually inspect and reseat wiring harnesses between boards.
  4. Check for signs of burnt connectors or damaged circuit traces.
  5. If damage is found, replace the affected control board or harness.

Parts needed: Control board (main), Display/user interface board, Wiring harness/connectors

🛑 When to Call a Pro:
  • If the error code persists after basic reset and visual inspection.
  • If there are signs of damaged control boards or burnt wiring.
  • If the unit fails to resume normal operation and cooling.

Technical Specifications

wattage 200W
component Compressor
resistance 3-5 ohms
part_number W10197427
voltage_rating 120V AC

Common Questions

What does ER-CO error mean on kenmore refrigerator?

ER-CO indicates a communication failure between the main control board and the display board, affecting refrigerator operation.

Can I fix kenmore refrigerator ER-CO error myself?

Yes, you can attempt a basic power reset by unplugging the refrigerator for 5 minutes.

How much does it cost to fix ER-CO error?

Estimated repair costs range from $80 to $350, depending on parts and labor.

When should I call a technician for ER-CO?

Call a technician if the error persists after a reset, or if you notice damaged control boards or burnt wiring.

Sources & References

Data last verified: 2026-02-19

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