Err
De'Longhi
Generic System Error / Self-Test Failure
Display shows 'Err' or 'Error' and beeps; no specific numeric code is given.
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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 in control PCB, Multiple simultaneous sensor faults, Power surge or unstable mains voltage, Corrupted program memory
How to Fix / Troubleshooting
Safety first: Turn the cooker off and unplug it from the mains.
- Power reset: Leave the unit unplugged for at least 10–15 minutes to allow capacitors to discharge. Then plug it back in and try a simple manual program.
- Check mains supply: Avoid using long extension cords or multi-plug adapters. Plug directly into a properly grounded wall outlet.
- Factory reset (if available): Consult the user manual for a reset procedure (often involves holding specific buttons while plugging in). Perform the reset and test again.
- Observe pattern: Note when the error appears (immediately, during heating, only on pressure programs). This information will help a technician pinpoint the fault.
If 'Err' persists after reset and basic checks, the main control PCB may need replacement by an authorized service center.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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