ProMinent Hydro/4 Operating Instructions Manual page 55

Fault description
The diaphragm rupture sensor
has triggered.
The overpressure sensor has
triggered.
The power end motor is very
hot.
All other faults.
Cause Remedy
The operating dia‐
n
phragm has ruptured.
n
There is a blockage in Clear the blockage.
the discharge line.
The system back pres‐ Clear the cause of the back pressure.
sure was momentarily
too high.
The discharge line is
n
seriously constricted.
n
Other causes. Call the ProMinent customer services.
Replace multi-layer diaphragm imme‐
diately - see "Diaphragm change" in
the chapter "Repair".
Replace separating diaphragm of the
diaphragm rupture sensor- see
"Replacing the separating diaphragm,
diaphragm rupture sensor" in the
chapter "Repair".
Rectify any constriction of the dis‐
charge line.
Have the safety relief valve checked.
Troubleshooting
Personnel
Technical per‐
sonnel
Technical per‐
sonnel
55