Edition 01 of 08/2017
6.2
SERVICE MANUAL
Fig. 141
Fig. 144
Fig. 142
6.1 COFFEE BOILERS
There is a 0.7 litre coffee boiler in each unit in the
T3 machines.
The consumption of each of these coffee boilers
is 1000 W.
The coffee boilers are equipped with a tem-
perature probe that communicates with the elec-
tronic board and an expansion valve to allow the
release of excess water expansion formed during
the heating phase. A thermal fuse is connected
in series to open the circuit if the safety of the
machine is compromised by excessive overheat-
ing. The thermal fuse opens the circuit once the
temperature limit of 167° is exceeded.
6.2 ACCESS TO
COFFEE BOILERS
6.2.1 ACCESS TO THE UPPER
PART OF THE HEATER
To access the upper part of the coffee boilers:
1 Remove the screws of the cup warming
modules.
DANGER
Before proceeding with the operations
described in the chapter make sure that the
machine is turned off and unplugged from the
mains. Discharge any residual pressure pre-
sent in the steam heater.
DANGER
Fig. 143