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Issue
Probable leakage between inlet and
outlet or between the valve and tank
seal.
High pressure drop is causing the
Hard water
opening of the automatic bypass.
detected in the
outlet.
Inlet piston is out of position causing
bypass between inlet and outlet.
Bypass valve not closed.
Low water pressure at the inlet.
Screen on the manifold is plugged by
dirt.
Plugged injector.
No brine draw.
Problems in salt/brine tank.
Ref. MKT-IM-009 / C - 08.06.2018
Installer Manual Siata V132-SFE-EV-VIRIDION - Troubleshooting
Cause
Reset and recovery
Damage on the inlet internals
A
o-ring (1) and (2) or on the inlet
piston. Dismount the valve and
visually
check
Replace
them
damaged.
B
The rise pipe o-ring may be
damaged, disconnect the valve
from the tank and check the
o-ring status.
If mixing is not desired replace the
automatic bypass with a manual
bypass model.
In that case a leakage on the drain
should also be observed. Check for
problems on the pilot circuit otherwise
check if the pilot pressure is in
compliance with the valve
specifications. For twin pilot valves,
the screen inside the manifold may be
plugged by dirt causing pressure drop
on the pilot circuit. Remove and clean
it.
Ensure that the bypass valve is closed.
Close the outlet of the valve, check that
the pressure gauge shows a pressure
of at least 2 bar. If it is lower, the
pressure is insufficient. If the pressure
is higher than 2 bar, check the
mechanical filter which is installed
before the injector is plugged by dirt.
Remove it and clean.
Remove manifold and screen and
clean thoroughly.
Remove injector, thoroughly clean the
holes in the injector and remount it.
Thoroughly check the connection
assembly to the brine tank:
A
Check
that
there
obstructions in the connection
system.
B
Check that there is a flow when the
float is in lower position.
C
Check that there is no formation of
a salt bridge in the brine tank.
D
Check that all components of the
brine valve operate efficiently.
these
items.
if
they
are
are
no
95 / 110
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