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light 9 steady, green lights flash

Generic Alarm light steady and green lights flash — Infuser needs to be inserted

DeLonghi · ESAM4200 Espresso Machine

What does light 9 steady, green lights flash mean?

After cleaning, if the infuser has been left out of the coffee maker, this state indicates it needs to be reinserted correctly.

Common Causes

  • Infuser has been removed for cleaning and not reinserted.
  • Infuser is not correctly in place, causing the service door to not close properly.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the service door is closed.

  2. 2

    Press the 1CUP and 2CUPS buttons together until all four lights turn off.

  3. 3

    Only when all four lights are off, open the service door and insert the infuser.

  4. 4

    Press the infuser where marked 'PUSH' until you hear a click, ensuring it's properly seated.

  5. 5

    Check that the two red buttons on the infuser open out correctly before closing the service door.

Browse all codes in this manual (13)
Verified technical data. Last updated: April 2026

Related Faults

coffee delivered too fast, not creamyCoffee delivered too fast and not creamy enough — Grinding coarseness or quantity adjustment neededcoffee delivered too slowlyCoffee delivered too slowly (in drops) — Grinding coarseness or quantity adjustment neededlight 1 and 2 flashOne and Two Cup lights flash — Machine not at ideal coffee temperature
Source: DeLonghi ESAM4200 Espresso Machine
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