Generic “ERR” or “ERROR” message appears and the cooker becomes unresponsive.

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.

Possible Causes

Firmware glitch, Button panel communication error, Internal sensor data conflict, Control board failure

Safety first: Unplug the cooker before attempting any reset.

Soft reset: Unplug the unit for at least 5 minutes, then plug back in and try a simple mode like Keep Warm or Sauté.
Check keypad: Ensure no buttons are stuck or held down by spills. Wipe the control panel with a slightly damp cloth and dry thoroughly.
Avoid power strips: Plug directly into a wall outlet to ensure stable power.

If the ERR message returns immediately or the display is frozen, the main control board or user interface board may need replacement.

Hard 4/5

Main Control Board

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