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EN SELECTION Style Problem Diagnostics/Solution Suggestions The coffee is too cold Possible causes: 1- The portafilter is cold. 2- The coffee grind is too fine. 3- The water circuit of the machine is dirty (lime). 4- The boiler pressure is lower than 0.8 bar (0.08 Mpa). In case 1, always keep the portafilter mounted on the AromaPerfect brewing group. In case 2, change the coffee grind. In cases 3 or 4, call a skilled technician. The coffee is tepid The coffee is tepid, although the pressure is normal between 1 and 1.2 bar (0.12 Mpa). In this case, the pressure measurement is incorrect. Call a skilled technician to check the relief valve. Meanwhile, in order to use the machine, open the steam valve, (Fig. 01; pos. 9) the boiler pressure will drop to zero: This will connect the heating elements and the temperature will increase. Continue this operation every day when turning on the machine. The coffee is too hot Possible causes: 1- The boiler pressure is higher than 1.3 bar (0.13 Mpa). 2- The machine is covered with something that prevents it from cooling. 3- The machine has been installed in a position that prevents air circulation. In case 1, call a skilled technician In cases 2 and 3, reset the machine cooling conditions. Coffee deposit in the bottom of the cup There is a deposit of coffee powder in the bottom of the cup. Possible causes: 1- The coffee grind is too fine. 2- The portafilter is dirty inside, or the filter is damaged. 3- The grinder mills are worn, call a technician to replace them. 4- Too high pump pressure [>10 bar (0.1 Mpa)] (volumetric pump version). In case 1, it is necessary to adjust the grinder correctly. In case 2, clean the portafilter or replace the filter; in all other cases call a technician. 28