Err
Zavor General System Error / Firmware Fault

Generic "Err" message on display; cooker beeps and will not start.

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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, Corrupted program memory, Control board fault, Button input error

How to Fix / Troubleshooting

Safety first: Unplug the cooker before extended resets.

  • Soft reset: Press and hold the Cancel/Stop button for 5–10 seconds (if supported) to reset the control.
  • Power reset: Unplug the cooker for 10–15 minutes, then plug back in and try a simple program like Keep Warm.
  • Check button panel: Ensure no buttons are stuck or continuously pressed. Clean the panel surface.
  • Factory reset (if available): Follow the Zavor manual instructions to restore factory settings.
  • If Err persists: The main control board may be defective and require replacement.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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