Err
ProCook
Generic System Error / Firmware Fault
Display shows 'Err' with beeping and no specific code; cooker 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
Corrupted program memory, Power surge event, Incompatible button sequence, Internal communication error between boards
How to Fix / Troubleshooting
Safety first: Unplug the appliance before any inspection.
- Full power cycle: Unplug the multicooker for 10–15 minutes. Press and hold the Start/Cancel button for 10 seconds while unplugged to help discharge internal circuits, then plug back in.
- Factory reset (if supported): Consult the ProCook manual for a reset procedure (often holding specific buttons while plugging in). Perform the reset and test basic functions.
- Check for stuck buttons: Ensure no button is physically stuck or jammed. Gently press each key to confirm free movement.
- Service needed: If 'Err' persists, the main control PCB firmware or hardware is likely damaged and the board should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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