A15
De'Longhi
General Internal Fault / Electronics Error
Machine shows A15 and stops immediately after starting
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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
Control board failure, Internal communication error between boards, Shorted sensor, Power surge damage
How to Fix / Troubleshooting
Safety first: Turn OFF and unplug the machine. Do not open the housing unless you are qualified to work with electronics.
- Power cycle: Leave the machine unplugged for at least 15 minutes. Plug it back in and turn ON to see if the error clears.
- Check power source: Ensure the outlet provides stable voltage and is not shared with heavy appliances that cause surges.
- Remove accessories: Remove the milk carafe, water tank, and drip tray, then reinstall them to ensure no accessory is causing a sensor fault.
- If A15 remains: The main control board or internal wiring is likely defective. Professional diagnosis and board replacement are required.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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