Err
All-Clad General System Fault / Firmware Error

Generic “Err” or “Error” message appears on the display and the cooker will not operate.

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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

Temporary firmware glitch, Power surge affecting control board, Corrupted program memory, Internal communication error between boards

How to Fix / Troubleshooting

Safety first: Unplug the cooker before attempting any reset.

  • Hard reset: Unplug the unit from the wall outlet for at least 5 minutes to allow capacitors to discharge. Then plug it back in.
  • Try different outlet: Connect the cooker directly to a known-good wall outlet (no extension cord or power strip) to rule out power issues.
  • Check for stuck keys: Ensure no buttons are held down or stuck, which can trigger an error.
  • Factory reset (if available): Consult the All-Clad manual for a factory reset procedure (often a combination of buttons held for several seconds) and perform it.

If the generic error returns immediately after reset, the main control board or firmware is likely damaged and will require professional service or replacement.

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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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