5 Unscrew and remove the power to the sen-
sor.
The flowmeter includes several parts, it is advis-
able to replace the gaskets every time it is fully
inspected.
Check that there is no limestone in the Ventolino
inlet grid, remove the 3 screws that hold the
cover and check that there is nothing to obstruct
the smooth operation.
To remove the filter screen, in the event that it is
particularly clogged, simply use a wire to push
the retina, if necessary a common clip is also
sufficient.
Edition 01 of 08/2017
7.14
SERVICE MANUAL
Fig. 222
Fig. 221
Fig. 223
Fig. 224
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