Err
Kenmore
General control system fault
Display shows 'Err' and the unit 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
Firmware glitch,Corrupted control board memory,Loose internal connectors,Failed main control board
How to Fix / Troubleshooting
Safety first: Unplug the air fryer before opening any covers.
- Hard reset: Unplug the unit for at least 10 minutes to fully discharge internal capacitors, then plug back in and test.
- Check key lock: Some models have a child lock; verify it is not engaged according to the user manual.
- Inspect internal connections: Remove the housing around the control board and verify all harnesses are firmly seated. Reseat any loose connectors.
- Look for damage: Inspect the main control board for burn marks, cracked solder joints, or water damage. Any visible damage usually requires board replacement.
- Replace control board: If 'Err' persists after resets and connector checks, install a new main control board compatible with your Kenmore air fryer model.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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