The coffee is too cold.

Description :

1- The cups are cold.
2- The filter holders are cold.
3- The ground coffee is too coarse.
4- The machine is scaled up.
5- The boiler pressure is lower than 0.6 bar.
6- The boiler is flooded.

Solution :

Case 3 can be resolved by adjusting the grinder settings.
Cases 4, 5 and 6 require the attention of a technician, who will carry out the necessary maintenance operations.

Advice:

The boiler pressure must be between 0.6 and 0.8 bars (at sea level). 0.03 bar must be added for every 250 m of altitude.