Faults
04/2019
EN 29
7 Faults
NOTICE
It is normal for a few drops of water to escape from the
mechanical seal from time to time. This is especially true during
the break-in period.
Depending on the water quality and number of operating hours,
the mechanical seal can begin to leak.
If water leaks constantly, have the mechanical seal replaced
by a qualified technician.
7.1 Overview
Fault
: Motor overload
Possible cause
Solutions
Dynamic head lower than
that indicated in the
order.
Set operating point exactly.
For constant overload turn the
impeller - (further enquiry
required).
Higher density of the
pumping liquid than that
indicated in the order.
Contact
manufacturer.
Too high a speed.
Reduce
speed
-
(further enquiry
required).
Running on two phases.
Renew faulty fuse.
Check
the
electrical
connections
using the operating manual.
Transport fuse not
removed from the shaft
groove.
Remove the transport fuse from
the shaft groove.
Fault
: Too high a pump pressure
Possible cause
Solution
Too high a speed.
Reduce
speed
-
(further enquiry
required).
