Error Code The appliance does not come on; It is not plugged into the mains socket.

Electrical connection failure due to non-attachment or poor contact of plug with power source.

? What Causes This

Device remains unpowered when disconnected from electrical supply unit.

✓ How to Fix It

Ensure correct plugging and secure fitment into wall socket. Refer page 18 ‘Appliance Does Not Come On’. If trouble persists, verify main switch position (fig.3 on setup guide) as per troubleshooting chart provided.

Source: page 18 of the official manual

From the manual

Manual page 18 — De'Longhi error The appliance does not come on; It is not plugged into the mains socket.

This error code appears in:

De'Longhi Magnifica XS Ecam22110b