Table of Contents
Advertisement
Installer Manual Siata V132-SFE-EV-VIRIDION - Troubleshooting
10.
Troubleshooting
Issue
Leaks to the drain
during service or
Leak from pilot.
when in stand-by.
94 / 110
Cause
Reset and recovery
A
Twin pilot valve:
Before closing the inlet water
supply,
disconnect
rubber tube and check if there is a
leakage from that tube. In case
there is one, close inlet water
pressure and change the twin pilot
assembly.
B
External distributor valve:
Before closing the inlet water
supply,
disconnect
plastic
tube
from
distributor system and check if
there is a leakage from the drain
port. In case there is one, one or
more pilots must be replaced.
A pilot circuit leakage can also cause
malfunctions of the valve because the
pressure can not be maintained in the
pressure chambers and hence the
piston of the valve can be badly
positioned. After solving the pilot
leakage problem, restore inlet water
supply and put the controller in
service position to check if leakage
has stopped. If the leakage remains,
contact your supplier for maintenance
on the valve.
Ref. MKT-IM-009 / C - 08.06.2018
the
drain
the
drain
the
pilot
Advertisement
Table of Contents
