Fault description
Cause
Remedy
Personnel
Pump fails to pressurise
or does not prime in
despite full stroke motion
and bleeding.
The valves are dirty
or worn.
Repair the valves - see chapter
entitled "Repair".
Technical personnel
The feed chemical
has particles larger
than 0.3 mm.
Install a suitable filter in the suc‐
tion line.
Technical personnel
Pump does not reach
high pressure rates.
The motor is wired
incorrectly.
1. Check the mains voltage and
mains frequency.
2. Wire the motor correctly.
Electrician
Electrical technician
with additional
explosion protection
qualification
The mains voltage
has failed.
Eliminate the cause.
Electrician
Electrical technician
with additional
explosion protection
qualification
Operating diaphragm
ruptured and alarm
has not sounded. **
n
Replace the operating dia‐
phragm immediately - refer
to the "Repair" chapter -
"Changing the diaphragm".
Technical personnel
The power end motor is
very hot.
The discharge line is
seriously constricted.
n
Rectify any constriction of
the discharge line.
Technical personnel
All other faults.
Other causes.
Call ProMinent
®
Service.
Tasks
Troubleshooting
69