3 Disconnect the Teflon tube of the third pas-
sage.
5 Using a 3 mm Allen wrench or a screwdriver
of the same type to remove the two screws
that fix the head to the group.
Fig. 107
Fig. 106
4 Unscrew the fixing nut of the head with a
wrench No. 14.
6 Place paper towels under the valve to remove
the head of the coil. Inspect the contact
points that can often be filled with limestone.
Clean using a screwdriver or other suitable
tool.
Edition 01 of 08/2017
4.9
SERVICE MANUAL
Fig. 108
Fig. 105