Err
Tefal
Generic System Error / Self-Test Failure
Display shows 'Err' or 'Error' without a number and the 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
Multiple sensor readings out of range, Internal self-test failure on startup, Loose internal connector, Control board fault
How to Fix / Troubleshooting
Safety first: Unplug the appliance before any inspection.
- Basic reset: Unplug for at least 10 minutes, then plug back in and avoid pressing any buttons for a few seconds to allow self-test to complete.
- Check lid and bowl: Ensure the inner bowl is correctly seated and the lid is fully closed and locked. Some models show a generic error if safety conditions are not met.
- Inspect for moisture: If the cooker was recently used on high pressure, leave the lid open and allow the unit to dry for several hours, then retry.
- If 'Err' remains: The control board may have a hardware fault or corrupted firmware. Further diagnosis requires opening the unit and measuring sensor values, which should be done by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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