C0
Crock-Pot Communication Error Between Keypad and Main Board

Display shows C0 or CO and the cooker will not start a program.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Loose ribbon cable between control panel and main PCB, Damaged keypad membrane, Corroded connector contacts

How to Fix / Troubleshooting

Safety first: Unplug the cooker before opening the housing or touching any internal wiring.

  • Access control panel: Remove screws securing the front control panel or top housing (model dependent). Carefully lift the panel to expose the ribbon cable.
  • Check ribbon cable: Ensure the flat cable is fully inserted into its connector on the main board and on the keypad side. Gently remove and reinsert to clean contacts.
  • Inspect for damage: Look for kinks, tears, or burn marks on the ribbon. Any visible damage usually requires replacement.
  • Clean connectors: Use a dry, soft brush or compressed air to remove dust from connectors. Do not use liquid cleaners.
  • Reassemble and test: Refit the control panel, plug in, and test button response. If C0 persists, the keypad or board may be defective.
  • Replacement: Replace the control panel keypad assembly or main control board as needed. This repair is best handled by a technician if you are not experienced with electronics.
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Repair Difficulty

Hard 4/5

Required Part

Control Panel Keypad Assembly
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